{"title":"Jaguar","description":"","products":[{"product_id":"remus-jaguar-f-type-s-exhaust-with-tail-pipes-x152","title":"Remus JAGUAR F-Type S Exhaust with Tail Pipes (X152)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCat-back-system consisting of:\u003c\/p\u003e\n\u003cp\u003eResonated front section, left \u0026amp; right sport exhaust with center exit (selectable tail pipes), with 2 vacuum operated valves, incl. EC type approval. 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They are produced to be about 25mm lower when new than standard ride height, and uprated by about 15-20% - dampers do not need to be changed.  Exact drop will vary and can sometimes be less than 25mm, because cars can already have sagged a little from original factory height.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese springs have been developed to be the best setup for real-world road use. They give the car a much better stance, and sharper handling on a spirited drive, but will still have very much a luxury Jaguar ride and no clearance issues with standard or factory option wheels and tyres.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePHSJX300UR\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar XJR X300 Saloon | 3980ccm 320HP 235KW (Petrol): 1994 - 1997 \u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31860801536137,"sku":"PHSJX300UR","price":252.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1.jpg?v=1579463030"},{"product_id":"powerhouse-jaguar-s-type-r-performance-lowered-uprated-road-springs-x200","title":"Powerhouse Jaguar S-Type R Performance Lowered Uprated Road Springs (X200)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis ad is for a set of uprated lowered\/stiffened springs for the 2001-2008 S-Type R models, will also fit non-supercharged STR models.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThese springs are manufactured by the leading UK specialist spring manufacturer with unsurpassed experience in producing uprated springs for Jaguar models. They are produced to be about 25mm lower when new than standard ride height, and uprated by about 15-20% - dampers do not need to be changed. Exact drop will vary and can sometimes be less than 25mm, because cars can already have sagged a little from original factory height\u003cbr\u003e\u003cbr\u003eThese springs have been developed to be the best setup for real-world road use. They give the car a much better stance, and sharper handling on a spirited drive, but will still have very much a luxury Jaguar ride and no clearance issues with standard or factory option wheels and tyres.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHSJSTRLUR\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar S-Type X200 4.2 Supercharged Saloon: 2001 - 2008\u003c\/p\u003e\n\u003cp\u003eJaguar S-Type X200 R 4.2 V8 Saloon: 2002 - 2007\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31885448347785,"sku":"PHSJSTRLUR","price":244.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1_991bdf67-851c-43d5-8d35-f92605234ba2.jpg?v=1579634172"},{"product_id":"powerhouse-jaguar-xkr-xk8-performance-lowered-uprated-road-springs-x150","title":"Powerhouse Jaguar XKR \/ XK8 Performance Lowered Uprated Road Springs (X150)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis ad is for a set of uprated lowered\/stiffened springs for the 2006-on aluminium bodied Jaguar XK and XK-R 4.2 models.\u003cbr\u003e\u003cbr\u003eThese springs are manufactured by the leading UK specialist spring manufacturer with unsurpassed experience in producing uprated springs for Jaguar models. 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This spring set will make the car look much better for a lower and more level stance, with less arch gap (but no clearance problems with standard or factory option wheels and tyres), and feel sharper on a spirited drive, but will still have a luxury Jaguar ride.de.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHSX15042UR25\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar 4.2 XK8 X150: 2006 - 2009\u003cbr\u003eJaguar 4.2 XKR X150: \u003cspan\u003e2006 -\u003c\/span\u003e\u003cspan\u003e 2009\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31887421177993,"sku":"PHSX15042UR25","price":244.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1_28515b9f-ad8f-4d33-9b26-a8329a4301ee.jpg?v=1579634500"},{"product_id":"powerhouse-jaguar-xkr-4-0-performance-lowered-uprated-road-springs-x100-1998-2000","title":"Powerhouse Jaguar XKR 4.0 Performance Lowered Uprated Road Springs (X100 1998-2000)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis ad is for a set of uprated lowered\/stiffened springs for the 1998 - 2000 steel bodied Jaguar XKR (X100) 4.0 models.\u003cbr\u003e\u003cbr\u003eThese springs are manufactured by the leading UK specialist spring manufacturer with unsurpassed experience in producing uprated springs for Jaguar models. 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They are produced to be about 25mm lower when new than standard ride height on the XKR, and uprated by about 15-20% - dampers do not need to be changed. Exact drop will vary and can sometimes be less than 25mm, because cars can already have sagged a little from original factory height\u003cbr\u003e\u003cbr\u003eThese springs have been developed to be the best setup for real-world road use. They give the car a much better stance, and sharper handling on a spirited drive, but will still have very much a luxury Jaguar ride and no clearance issues with standard or factory option wheels and tyres.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHSJX10042SUR25a\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar XK8 (X100) 4.2 models 2002 - 2006 Convertible\u003c\/p\u003e\n\u003cp\u003eJaguar XK8 (X100) 4.2 models 2002 - 2005 Coupe\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31920949330057,"sku":"PHSJX10042SUR25a","price":244.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1_4f133e12-68c0-4fae-801d-cc58ae6e7cde.jpg?v=1579624239"},{"product_id":"powerhouse-jaguar-xkr-4-2-performance-lowered-uprated-road-springs-x100","title":"Powerhouse Jaguar XKR 4.2 Performance Lowered Uprated Road Springs (X100)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis ad is for a set of uprated lowered\/stiffened springs for the 2002 - 2006 steel bodied \u003cstrong\u003eJaguar XKR (X100) 4.2 models\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese springs are manufactured by the leading UK specialist spring manufacturer with unsurpassed experience in producing uprated springs for Jaguar models. 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They give the car a much better stance, and sharper handling on a spirited drive, but will still have very much a luxury Jaguar ride and no clearance issues with standard or factory option wheels and tyres.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHSJX10042SUR25\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar XKR (X100) 4.2 models 2002 - 2006 Convertible\u003c\/p\u003e\n\u003cp\u003eJaguar XKR (X100) 4.2 models 2002 - 2005 Coupe\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31921109729417,"sku":"PHSJX10042SUR25","price":244.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1_9cd9163b-3736-499b-8d79-1e96520e1d6d.jpg?v=1579674730"},{"product_id":"powerhouse-jaguar-xkr-4-0-performance-lowered-uprated-road-springs-x100-2001-2002","title":"Powerhouse Jaguar XKR 4.0 Performance Lowered Uprated Road Springs (X100 2001- 2002)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis ad is for a set of uprated lowered\/stiffened springs for the 2001 - 2002 steel bodied Jaguar XKR (X100) 4.0 models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese springs are manufactured by the leading UK specialist spring manufacturer with unsurpassed experience in producing uprated springs for Jaguar models. 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They give the car a much better stance, and sharper handling on a spirited drive, but will still have very much a luxury Jaguar ride and no clearance issues with standard or factory option wheels and tyres.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHSJX10040LURa\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar XKR (X100) 4.0 models 2001 - 2002\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31921708433545,"sku":"PHSJX10040LURa","price":244.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1_27c4729b-ea00-4123-b2b8-f7512b42b11e.jpg?v=1579674687"},{"product_id":"powerhouse-jaguar-xk8-4-0-performance-lowered-uprated-road-springs-x100-1998-2002","title":"Powerhouse Jaguar XK8 4.0 Performance Lowered Uprated Road Springs (X100 1998- 2002)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis ad is for a set of uprated lowered\/stiffened springs for the 1998-2002 Jaguar XK8 4.0 models (X100).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey are produced to be about 25-30mm lower when new than standard ride height on the XK8, (please be aware that an older car's springs may already have 'sagged' a little below standard height over the years, so actual drop may be less than those figures).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe springs are uprated by about 20-25% - dampers do not need to be changed.\u003cbr\u003e\u003cbr\u003eThese springs give the car a much better stance and feel sharper on a spirited drive, but still retain the refinement and comfort expected of Jaguar's ride quality and do not cause any clearance problems with standard tyre and wheel sizes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHSJX10040NUR\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJaguar XK8 (X100) 4.0 models 1998 - 2002\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31921776820361,"sku":"PHSJX10040NUR","price":244.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_springs_-_Panthera_Performance_Supplies1_7c26be00-d695-490c-bf4f-13811fc1f750.jpg?v=1579634284"},{"product_id":"powerhouse-jaguar-xkr-4-2-supercharger-upper-pulley-10-x100","title":"Powerhouse Jaguar XKR 4.2 Supercharger Upper Pulley 10% (X100)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e10% uprated supercharger pulley for the Jaguar XKR 4.2 V8.\u003cbr\u003e\u003cbr\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003cbr\u003e\u003cbr\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. 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Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis modification gives a 10% supercharger driven speed increase, which equates to about a 2.5psi boost pressure increase (this is the pulley size which requires material removal from the supercharger nose, please see our other ads if you prefer the 6% pulley option).\u003cbr\u003e\u003cbr\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 40bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. 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Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis modification gives a 10% supercharger driven speed increase, which equates to about a 2.5psi boost pressure increase (this is the pulley size which requires material removal from the supercharger nose, please see our other ads if you prefer the 6% pulley option).\u003cbr\u003e\u003cbr\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 40bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. 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Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis modification gives a 10% supercharger driven speed increase, which equates to about a 2.5psi boost pressure increase (this is the pulley size which requires material removal from the supercharger nose, please see our other ads if you prefer the 6% pulley option).\u003cbr\u003e\u003cbr\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 40bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. 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Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis modification gives a 10% supercharger driven speed increase, which equates to about a 2.5psi boost pressure increase (this is the pulley size which requires material removal from the supercharger nose, please see our other ads if you prefer the 6% pulley option).\u003cbr\u003e\u003cbr\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 40bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003cbr\u003e\u003cbr\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/li\u003e\n\u003cli\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ10jd\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XJR 4.2 V8 \u003c\/span\u003e\u003cspan\u003e(X350)\u003c\/span\u003e: 2003 - 2009\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31935823315081,"sku":"PHUPJ10jd","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/s-l1600_ef40f758-d12f-486f-81aa-ca8f5ecc5c03.jpg?v=1579717516"},{"product_id":"powerhouse-jaguar-xjr-4-2-supercharger-upper-pulley-10-x358","title":"Powerhouse Jaguar XJR 4.2 Supercharger Upper Pulley 10% (X358)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e10% uprated supercharger pulley for the Jaguar XJR 4.2 V8 (X358).\u003cbr\u003e\u003cbr\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003cbr\u003e\u003cbr\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis modification gives a 10% supercharger driven speed increase, which equates to about a 2.5psi boost pressure increase (this is the pulley size which requires material removal from the supercharger nose, please see our other ads if you prefer the 6% pulley option).\u003cbr\u003e\u003cbr\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 40bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003cbr\u003e\u003cbr\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/li\u003e\n\u003cli\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ10jc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XJR 4.2 V8 \u003c\/span\u003e\u003cspan\u003e(X358)\u003c\/span\u003e: 2003 - 2009\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31935924142217,"sku":"PHUPJ10jc","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/s-l1600_0ff2b0bd-6a1a-435d-bbd4-3e2960659df4.jpg?v=1579717949"},{"product_id":"powerhouse-jaguar-xf-4-2-supercharger-upper-pulley-10-x250","title":"Powerhouse Jaguar XF 4.2 Supercharger Upper Pulley 10% (X250)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e10% uprated supercharger pulley for the Jaguar XF 4.2 V8 (X250).\u003cbr\u003e\u003cbr\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003cbr\u003e\u003cbr\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis modification gives a 10% supercharger driven speed increase, which equates to about a 2.5psi boost pressure increase (this is the pulley size which requires material removal from the supercharger nose, please see our other ads if you prefer the 6% pulley option).\u003cbr\u003e\u003cbr\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 40bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003cbr\u003e\u003cbr\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/li\u003e\n\u003cli\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ10f\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XF 4.2 V8 \u003c\/span\u003e\u003cspan\u003e(X250)\u003c\/span\u003e: 2008 - 2015\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31936014811273,"sku":"PHUPJ10f","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/s-l1600_438ae72a-d9ef-4790-9738-ac4af60fb85c.jpg?v=1579718704"},{"product_id":"powerhouse-jaguar-f-pace-supercharger-upper-pulley-6-x761","title":"Powerhouse Jaguar F-Pace Supercharger Upper Pulley 6% (X761)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUprated supercharger pulley for J\u003cspan\u003eaguar F-Pace (X761) S 3 Ltr. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur pulley gives a reduction of 6% (58mm Dia), the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003cbr\u003e\u003cbr\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio increases supercharger rpm and produces more boost.The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe 6% reduction increases supercharger speed and therefore boost. Typical gains from around 15-25Bhp depending on base model. Gains across the mid range with remapped cars seeing up to double those figures and holding gains at peak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Powerhouse 6% reduction 58mm High Grade Stainless Steel power pulley.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDetailed instruction sheet for Installation\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. Installing can be done by heating up the new pulley and sliding onto the shaft.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePH00030AN\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar F-Pace 4.2 V8 \u003c\/span\u003e\u003cspan\u003e(X761)\u003c\/span\u003e: 2015 - 2018\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"file:\/\/\/C:\/Users\/annaj\/Downloads\/POWERHOUSE%20Pulley%20Upper%20Instructions%206%25%204L%20Mar%2021.pdf\" title=\"6% Pulley\" rel=\"noopener\" target=\"_blank\"\u003eInstruction \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31936104923273,"sku":"PH00030AN","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_Supercharger_Upper_Pulley_5.jpg?v=1579720326"},{"product_id":"powerhouse-jaguar-f-type-400-supercharger-upper-pulley-6-x152","title":"Powerhouse Jaguar F-Type 400 Supercharger Upper Pulley 6% (X152)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUprated supercharger pulley for J\u003cspan\u003eaguar F-Type 400 (X152) 2016 - 2018. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur pulley gives a reduction of 6% (58mm Dia), the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003cbr\u003e\u003cbr\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio increases supercharger rpm and produces more boost.The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe 6% reduction increases supercharger speed and therefore boost. Typical gains from around 15-25Bhp depending on base model. Gains across the mid range with remapped cars seeing up to double those figures and holding gains at peak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Powerhouse 6% reduction 58mm High Grade Stainless Steel power pulley.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDetailed instruction sheet for Installation\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. Installing can be done by heating up the new pulley and sliding onto the shaft.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00075AN\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar F-Type 400 Sport 3 Ltr (X152)\u003c\/span\u003e: 2016 - 2018\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31936284983433,"sku":"PH00075AN","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_Supercharger_Upper_Pulley_5_11733c9d-ae43-4977-af4a-59e8796bede9.jpg?v=1579720629"},{"product_id":"powerhouse-jaguar-xkr-5-0-supercharger-upper-pulley-7-5-x150","title":"Powerhouse Jaguar XKR 5.0 Supercharger Upper Pulley 7.5% (X150)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUprated supercharger pulley for \u003cspan\u003eJaguar XK (X150) XKR 5 Ltr.\u003c\/span\u003e\u003cspan\u003e 2009\u003c\/span\u003e\u003cspan\u003e - 2014.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur pulley gives a reduction of 7.5%, the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eChanging the pulley ratio increases supercharger rpm and produces more boost. The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 7.5% reduction increases supercharger speed and therefore boost equating to about 1.5psi increase. Typical gains from around \u003c\/span\u003e\u003cb\u003e25-30Bhp\u003c\/b\u003e\u003cspan\u003e across the mid range and top end with remapped cars seeing \u003c\/span\u003e\u003cb\u003edouble\u003c\/b\u003e\u003cspan\u003e those figures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Powerhouse 7.5% reduction High Grade Stainless Steel power pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDetailed instruction sheet for Installation\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. Installing can be done by heating up the new pulley and sliding onto the shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00048AO\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XK (X150) XKR 5 Ltr. 2009\u003c\/span\u003e\u003cspan\u003e - 2014\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31945404940425,"sku":"PH00048AO","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_Supercharger_Upper_Pulley2_c17d1ec4-cb5b-42c3-9677-51b7dd3e5182.jpg?v=1579798314"},{"product_id":"powerhouse-jaguar-xfr-5-0-supercharger-upper-pulley-7-5-x250","title":"Powerhouse Jaguar XFR 5.0 Supercharger Upper Pulley 7.5% (X250)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUprated supercharger pulley for \u003cspan\u003eJaguar XF (X250) XFR 5 Ltr.\u003c\/span\u003e\u003cspan\u003e 2009\u003c\/span\u003e\u003cspan\u003e - 2012.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur pulley gives a reduction of 7.5%, the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eChanging the pulley ratio increases supercharger rpm and produces more boost. The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 7.5% reduction increases supercharger speed and therefore boost equating to about 1.5psi increase. Typical gains from around \u003c\/span\u003e\u003cb\u003e25-30Bhp\u003c\/b\u003e\u003cspan\u003e across the mid range and top end with remapped cars seeing \u003c\/span\u003e\u003cb\u003edouble\u003c\/b\u003e\u003cspan\u003e those figures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Powerhouse 7.5% reduction High Grade Stainless Steel power pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDetailed instruction sheet for Installation\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. Installing can be done by heating up the new pulley and sliding onto the shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00051AO\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XFR (X250) 5 Ltr.\u003c\/span\u003e\u003cspan\u003e 2009\u003c\/span\u003e\u003cspan\u003e - 2012\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31945419260041,"sku":"PH00051AO","price":190.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_Supercharger_Upper_Pulley2_b18a9205-0b48-49da-b22f-8215eb97bfcb.jpg?v=1579798478"},{"product_id":"powerhouse-jaguar-xj-sport-sentinal-5-0-supercharger-upper-pulley-7-5-x351","title":"Powerhouse Jaguar XJ Sport \/ Sentinal 5.0 Supercharger Upper Pulley 7.5% (X351)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUprated supercharger pulley for \u003cspan\u003eJaguar XJ Sport \/ Sentinal 5.0 ltr 2012 - 2018.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur pulley gives a reduction of 7.5%, the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eChanging the pulley ratio increases supercharger rpm and produces more boost. The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 7.5% reduction increases supercharger speed and therefore boost equating to about 1.5psi increase. Typical gains from around \u003c\/span\u003e\u003cb\u003e25-30Bhp\u003c\/b\u003e\u003cspan\u003e across the mid range and top end with remapped cars seeing \u003c\/span\u003e\u003cb\u003edouble\u003c\/b\u003e\u003cspan\u003e those figures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Powerhouse 7.5% reduction High Grade Stainless Steel power pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDetailed instruction sheet for Installation\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. Installing can be done by heating up the new pulley and sliding onto the shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00218AO\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar \u003c\/span\u003e\u003cspan\u003eXJ Sport \/ Sentinal 5.0 ltr 2012 - 2018.\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31945631105161,"sku":"PH00218AO","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_Supercharger_Upper_Pulley2_9cc68233-96b3-4ac4-a106-05d8f83ecd09.jpg?v=1579799908"},{"product_id":"powerhouse-jaguar-xf-s-3l-supercharger-upper-pulley-6-x250","title":"Powerhouse Jaguar XF S 3L Supercharger Upper Pulley 6% (X250)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUprated supercharger pulley for \u003cspan\u003eJaguar XFS (X250) 3 Ltr. 2012 - 2015\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur pulley gives a reduction of 6% (58mm Dia), the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003cbr\u003e\u003cbr\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio increases supercharger rpm and produces more boost.The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe 6% reduction increases supercharger speed and therefore boost. Typical gains from around 15-25Bhp depending on base model. Gains across the mid range with remapped cars seeing up to double those figures and holding gains at peak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Powerhouse 6% reduction 58mm High Grade Stainless Steel power pulley.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDetailed instruction sheet for Installation\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. Installing can be done by heating up the new pulley and sliding onto the shaft.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00049AN\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XFS (X250) 3 Ltr. 2012 - 2015\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31945883844745,"sku":"PH00049AN","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_Supercharger_Upper_Pulley_5_6668b7b9-eef1-47b3-bca9-6100b11d448e.jpg?v=1579801670"},{"product_id":"powerhouse-jaguar-xjr-4-0-v8-supercharger-lower-pulley-performance-18-x308","title":"Powerhouse Jaguar XJR \/ XJ8 4.0 V8 Supercharger Lower Pulley Performance 18% (X308)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e18.6% performance upgrade lower supercharger drive pulley with special length drive belt for Jaguar XJR \/ XJ8 4.0 V8 (X308) 1998 - 2002.\u003c\/p\u003e\n\u003cp\u003eThe pulley replaces the existing outer drive section of your crankshaft damper unit which will require modification to install.\u003cbr\u003e\u003cbr\u003eThese pulleys are CNC machined from high grade billet aluminium. Produced to the highest dimensional tolerances and surface finish to that of any on the market.\u003cbr\u003e\u003cbr\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines. Changing the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power \u003cb\u003egains\u003c\/b\u003e:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOn 4.0 engines, the lower pulley mod yields much better results than the upper pulley. This modification gives an 18.6% supercharger driven speed increase, which equates to about a \u003c\/span\u003e\u003cb\u003e3.5psi\u003c\/b\u003e\u003cspan\u003e boost pressure rise. \u003c\/span\u003e\u003cb\u003eIt will make the car feel as though the engine has grown by a litre\u003c\/b\u003e\u003cspan\u003e. These upgrades have been fitted to many cars, result vary but discussion on forums and bar stools confirm about a \u003c\/span\u003e\u003cb\u003e60bhp\/ftlb\u003c\/b\u003e\u003cspan\u003e gain from this modification. While this is true for the midrange gain the Eaton M112 supercharger loses efficiency at high rpm so actual peak power gain may realistically be about \u003c\/span\u003e\u003cb\u003e10-15bhp\u003c\/b\u003e\u003cspan\u003e. Irrespective of the increase tailing off towards redline where engines are least used, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car. IMPORTANT - if you already have a performance upper pulley, you will need to upgrade your intercooler and intercooler circuit water pump, as inlet air temperatures can rise too high with both pulleys upgraded and risk engine damage unless cooling is addressed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Uprated Alloy Performance Crank Pulley 18.6%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 x Stainless Steel Torx Mounting Bolts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial length Supercharger belt to suit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation\/Modification Instructions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore purchasing first check that you have the correct damper that can be modified. Some models of the 4.0 used a different damper that cannot be modified to use this pulley. Please refer to our images to find which is the correct version. To help, the pulleys we can modify have solid outer pulleys, the incorrect version can be identified by the presence of a rubber band between the pulley and the hub.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn order to install this pulley you will need access to a lathe large enough to work on the damper. We provide instructions with pictorial guides for this process. In brief it requires the existing pulley to be machined off and down to a hub size that the new pulley can sit on. Then some drilling and tapping to secure the pulley in place and it's done. If you don't have access to or do not have the required lathe skills we also offer a few services to suite you. You can simply send us your damper and we will modify and install the pulley for £209. Or if you wish to save a little time we can offer exchange however we do charge a £250 returnable deposit until your damper has arrived. If you have a little more time you can send in your damper and we will ship a stocked item same day we receive. No deposit is required for this. Please bare in mind that any returned damper must be in good useable condition, broken extractor threads, bent pulleys or excessive damage will affect the return deposit amount or the ability to supply a replacement.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIf you already have an upper performance pulley, the combination of the two will generate a lot of excess heat both affecting performance and reliability. We advise upgrading the intercooler and chargecooler electric pump to minimise the temperature increase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00036AQ\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XJR \/ XJ8 4.0 V8 (X308) 1998 - 2002.\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31946316775561,"sku":"PH00036AQ","price":236.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Lower_Crank_Pulley_5.jpg?v=1579804596"},{"product_id":"powerhouse-jaguar-xkr-xk8-4-0-v8-supercharger-lower-pulley-performance-18-x100","title":"Powerhouse Jaguar XKR \/ XK8 4.0 V8 Supercharger Lower Pulley Performance 18% (X100)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e18.6% performance upgrade lower supercharger drive pulley \u003cspan\u003einc. Crank Damper \u003c\/span\u003e\u003cb\u003eEXCHANGE\u003c\/b\u003e\u003cspan\u003e with special length drive belt for Jaguar XKR \/ XK8 4.0 V8\u003c\/span\u003e (X100) 1998 - 2002.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined from high grade billet aluminium. Produced to the highest dimensional tolerances and surface finish to that of any on the market. Our exchange crank dampers have been inspected, modified, blasted and given an OE black painted finish before our pulleys are installed.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines. Changing the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power \u003cb\u003egains\u003c\/b\u003e:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOn 4.0 engines, the lower pulley mod yields much better results than the upper pulley. This modification gives an 18.6% supercharger driven speed increase, which equates to about a \u003c\/span\u003e\u003cb\u003e3.5psi\u003c\/b\u003e\u003cspan\u003e boost pressure rise. \u003c\/span\u003e\u003cb\u003eIt will make the car feel as though the engine has grown by a litre\u003c\/b\u003e\u003cspan\u003e. These upgrades have been fitted to many cars, result vary but discussion on forums and bar stools confirm about a \u003c\/span\u003e\u003cb\u003e60bhp\/ftlb\u003c\/b\u003e\u003cspan\u003e gain from this modification. While this is true for the midrange gain the Eaton M112 supercharger loses efficiency at high rpm so actual peak power gain may realistically be about \u003c\/span\u003e\u003cb\u003e10-15bhp\u003c\/b\u003e\u003cspan\u003e. Irrespective of the increase tailing off towards redline where engines are least used, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car. IMPORTANT - if you already have a performance upper pulley, you will need to upgrade your intercooler and intercooler circuit water pump, as inlet air temperatures can rise too high with both pulleys upgraded and risk engine damage unless cooling is addressed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Crank Damper with Uprated Alloy Performance Supercharger Pulley 18.6%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Special length Supercharger belt to suit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSEE NOTES ABOUT EXCHANGE \u0026amp; FITMENT BEFORE BUYING\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eFitment:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore purchasing first check that you have the correct damper that can be modified. Some models of the 4.0 used a different damper that cannot be modified to use this pulley. Please refer to our images to find which is the correct version. To help, the pulleys we can modify have solid outer pulleys, the incorrect version can be identified by the presence of a rubber band between the pulley and the hub.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInstallation is relatively straight forward, the pulley needs pulling off and once off the replacement simply bolts back on. In order to do the install, you will need a few workshop tools including a puller for the crank damper. We advise using a specific puller for the crank pulley. If the pulley does not come off easily please \u003cb\u003eDO NOT\u003c\/b\u003e lever the crank pulley to remove it. This is a common practice that rarely succeeds, however, bends the pulley which makes it useless on exchange.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eExchange:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe offer two types of exchange for this crank damper.\u003cbr\u003e\u003cbr\u003eIMMEDIATE DISPATCH - If you need the damper quickly for the same day job we charge a £250 deposit in addition to the sale which we request by PayPal. This is returnable upon receipt of your exchange crank damper however we do reserve the right to adjust the deposit amount or refuse if the returned damper is in an un-useable condition.\u003cbr\u003eSTANDARD DISPATCH - Our typical service is to reserve a stock damper for you, on receipt of your exchange unit we will inspect it for useability and either send the damper out or if the damper is un-useable we will discuss your options.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePH00045BD\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XKR \/ XK8 4.0 V8\u003c\/span\u003e\u003cspan\u003e (X\u003c\/span\u003e\u003cspan\u003e100\u003c\/span\u003e\u003cspan\u003e) 1998 - 2002.\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31955950567561,"sku":"PH00045BD","price":356.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Lower_Crank_Pulley_5_05000f66-b730-4d19-8319-fd95aa65e997.jpg?v=1579878266"},{"product_id":"powerhouse-jaguar-xkr-4-2-v8-supercharger-upper-pulley-6-x150","title":"Powerhouse Jaguar XKR 4.2 V8 Supercharger Upper Pulley 6% (X150)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e6% uprated \u003c\/strong\u003esupercharger pulley for Jaguar XKR 4.2 V8 (X150) 2006 - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis modification gives a 6% supercharger driven speed increase, which equates to about a 1.5psi boost pressure increase (this is the pulley size which does not require material removal from the supercharger nose, please see our other ads if you prefer the 10% pulley option).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 25bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ6kc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XKR 4.\u003c\/span\u003e\u003cspan\u003e2\u003c\/span\u003e\u003cspan\u003e V8 (X1\u003c\/span\u003e\u003cspan\u003e5\u003c\/span\u003e\u003cspan\u003e0) \u003c\/span\u003e\u003cspan\u003e2006 - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956199702665,"sku":"PHUPJ6kc","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Upper_Pulley_6_5593dbb2-7752-46a0-ae2e-07b90be7c1f7.jpg?v=1579880393"},{"product_id":"powerhouse-jaguar-xf-super-v8-4-2-supercharger-upper-pulley-6-x250","title":"Powerhouse Jaguar XF Super V8 4.2 Supercharger Upper Pulley 6% (X250)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e6% uprated \u003c\/strong\u003esupercharger pulley for Jaguar XF Super V8 4.2 (X250) 2008 - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis modification gives a 6% supercharger driven speed increase, which equates to about a 1.5psi boost pressure increase (this is the pulley size which does not require material removal from the supercharger nose, please see our other ads if you prefer the 10% pulley option).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 25bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePHUPJ6f\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XF Super V8 4.2 (X\u003c\/span\u003e\u003cspan\u003e2\u003c\/span\u003e\u003cspan\u003e50) 200\u003c\/span\u003e\u003cspan\u003e8\u003c\/span\u003e\u003cspan\u003e - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956268056713,"sku":"PHUPJ6f","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Upper_Pulley_6_07866898-dbf9-4cf4-b29a-8a123cea125a.jpg?v=1579880950"},{"product_id":"powerhouse-jaguar-s-type-r-4-2-supercharger-upper-pulley-6-x200","title":"Powerhouse Jaguar S-Type R 4.2 Supercharger Upper Pulley 6% (X200)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e6% uprated \u003c\/strong\u003esupercharger pulley for Jaguar S-Type R 4.2 (X200) (X202) (X204) (X206) 200\u003cspan mce-data-marked=\"1\"\u003e1\u003c\/span\u003e - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis modification gives a 6% supercharger driven speed increase, which equates to about a 1.5psi boost pressure increase (this is the pulley size which does not require material removal from the supercharger nose, please see our other ads if you prefer the 10% pulley option).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 25bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePHUPJ6s\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar S-Type R 4.2 (X\u003c\/span\u003e\u003cspan\u003e20\u003c\/span\u003e\u003cspan\u003e0) (X202) (X204) (X206) 200\u003c\/span\u003e\u003cspan mce-data-marked=\"1\"\u003e1\u003c\/span\u003e\u003cspan\u003e - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956306002057,"sku":"PHUPJ6s","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Upper_Pulley_6_222fb805-aba0-409d-a827-122225b7ee80.jpg?v=1579881124"},{"product_id":"powerhouse-jaguar-xjr-4-2-supercharger-upper-pulley-6-x358","title":"Powerhouse Jaguar XJR 4.2 Supercharger Upper Pulley 6% (X358)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e6% uprated \u003c\/strong\u003esupercharger pulley for Jaguar XJR 4.2 (X358) 2008 - 2009.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis modification gives a 6% supercharger driven speed increase, which equates to about a 1.5psi boost pressure increase (this is the pulley size which does not require material removal from the supercharger nose, please see our other ads if you prefer the 10% pulley option).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 25bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ6jc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar\u003c\/span\u003e\u003cspan\u003e XJR 4.2 (\u003c\/span\u003e\u003cspan\u003eX358) 2008 - 2009\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956483342473,"sku":"PHUPJ6jc","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Upper_Pulley_6_e804ab67-2aee-4156-bdcc-57f82314dbeb.jpg?v=1579883150"},{"product_id":"powerhouse-jaguar-xj-super-v8-xjr-4-2-supercharger-upper-pulley-6-x350","title":"Powerhouse Jaguar XJ Super V8 \/ XJR 4.2 Supercharger Upper Pulley 6% (X350)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e6% uprated \u003c\/strong\u003esupercharger pulley for Jaguar XJ Super V8 and XJR 4.2 (X350) 2003 - 2007.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis modification gives a 6% supercharger driven speed increase, which equates to about a 1.5psi boost pressure increase (this is the pulley size which does not require material removal from the supercharger nose, please see our other ads if you prefer the 10% pulley option).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 25bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ6jd\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar \u003c\/span\u003e\u003cspan\u003eXJ Super V8 and XJR 4.2 (X350) 2003 - 2007.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956585021577,"sku":"PHUPJ6jc","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Upper_Pulley_6_356e30ef-6197-4daf-b9c4-c3025338fe30.jpg?v=1580052284"},{"product_id":"powerhouse-jaguar-xjr-4-0-supercharger-upper-pulley-6-x308","title":"Powerhouse Jaguar XJR 4.0 Supercharger Upper Pulley 6% (X308)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e6% uprated \u003c\/strong\u003esupercharger pulley for Jaguar XJR 4.0 (X308) 1997 - 2003.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese pulleys are CNC machined, produced to the highest dimensional tolerances and surface finish standard of any on the market, and made from high grade stainless steel which retains its superb finish after heating and fitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSupercharger pulley upgrades are not only the most proven, but the best value performance enhancements available for your supercharged Jaguar engine in terms of £\/bhp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChanging the pulley ratio results in the supercharger working at a higher speed and producing more boost. Because this just directly increases airflow through the car’s existing sensors, the ECU is kept aware of the increased flow and no further alterations or remapping are necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoost \u0026amp; Power Increase:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis modification gives a 6% supercharger driven speed increase, which equates to about a 1.5psi boost pressure increase (this is the pulley size which does not require material removal from the supercharger nose, please see our other ads if you prefer the 10% pulley option).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese upgrades have been fitted now to many cars and discussion on forums and bar stools usually refer to about a 25bhp\/ftlb gain from this size of pulley modification. That is true for the midrange gain, though the Eaton M112 supercharger becomes less efficient at high rpm so actual peak power gain may realistically be about 10-15bhp. Irrespective of the increase tailing off a little towards redline, this modification gives a HUGE increase in instant grunt and acceleration which really does transform the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn some cases, belt slippage has been reported when using smaller upper pulleys but this is attributable to some manufacturers taking a cheap route of making pulleys from aluminium alloy, which loses friction when hot. Our high grade stainless steel pulleys do not suffer from this problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSale Includes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh grade stainless steel CNC machined upgraded supercharger pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetailed instruction sheet with stage-by-stage photographs.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHUPJ6ja\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XJR 4.0 (X3\u003c\/span\u003e\u003cspan\u003e08\u003c\/span\u003e\u003cspan\u003e) 1997 - 2003.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_1.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/files\/Intruction_2.jpg?v=1730115931\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956657406089,"sku":"PHUPJ6ja","price":154.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Supercharger_Upper_Pulley_6_75d37eb2-9863-4df6-9d0b-5ca64f8cb528.jpg?v=1579884167"},{"product_id":"powerhouse-jaguar-xjr-6-4-0-supercharger-lower-pulley-performance-x300","title":"Powerhouse Jaguar XJR-6 4.0 Supercharger Lower Pulley Performance (X300)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePerformance upgrade lower supercharger drive pulley with special length drive belt for Jaguar XJR 4.0 6-cylinder (X300). \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe pulley replaces the existing outer drive section of your crankshaft damper unit (see fitment instructions below).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePHLPJO6\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJaguar XJR 4.0 6-cylinder (X300) 1994 - 1997\u003c\/span\u003e\u003c\/p\u003e","brand":"Powerhouse","offers":[{"title":"Default Title","offer_id":31956668383369,"sku":"PHLPJO6","price":285.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/1662\/4265\/products\/Powerhouse_Jaguar_XJR-6_4.0_Supercharger_Lower_Pulley_Performance_X300_-_Panthera_Performance_Supplies1.jpg?v=1579884574"},{"product_id":"powerhouse-jaguar-xkr-s-5-0-supercharger-upper-pulley-performance-7-5-x150","title":"Powerhouse Jaguar XKR-S 5.0 Supercharger Upper Pulley Performance 7.5% (X150)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eUprated\u003c\/b\u003e supercharger pulley for Jaguar XKR-S (X150) 2011 - 2014. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur pulley gives a reduction of 8%, the maximum amount possible without modifying the supercharger snout. These are designed in-house, CNC machined and produced to the highest standards of surface finish and dimensional tolerances of any pulley on the market. This pulley is made from high grade stainless steel for a durable finish and professional long lasting look.\u003cbr\u003e\u003cbr\u003eSupercharger pulleys are the most proven and best £\/Bhp performance enhancement available for supercharged engines.\u003cbr\u003e\u003cbr\u003eChanging the pulley ratio increases supercharger rpm and produces more boost.The direct increase in airflow is seen by the ECU where it will compensate fueling accordingly thus increasing power across the rpm with impressive mid-range. Being the later model ECU's these engines will also benefit from a remap to unleash the full potential with the new pulley allowing peak boost and power to be increased.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eBoost \u0026amp; Power Increase:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 8% reduction increases supercharger speed and therefore boost equating to about 1.5psi increase. Typical gains from around \u003cb\u003e25-30Bhp\u003c\/b\u003e across the mid range and top end with remapped cars seeing \u003cb\u003edouble\u003c\/b\u003e those figures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eSale Includes:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Powerhouse 7.5% reduction High Grade Stainless Steel power pulley.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDetailed instruction sheet for Installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eInstallation:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSome basic workshop tools are required to gain access to the supercharger pulley. Removal can be completed with mild heat and a suitable puller for the pulley. If using a conventional puller the radiator may need removing, specific pullers for this engine may only require loosening and moving of the radiator. Alternatively, you can grind off the pulley but some skill is required to do this without damaging the shaft. 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