{"title":"Engine Pulleys","description":"\u003cp\u003eIn the accessory drive system, the crankshaft drives the water pump, alternator, power steering pump, A\/C compressor and other accessories via an arrangement of pulleys mounted to each component and one or more drive belts. While the amount varies according to vehicle, all accessories use up horsepower - power that could be applied to your drive wheels. But there are ways to reduce your accessories' power consumption without negatively affecting function.\u003c\/p\u003e\n\u003cp\u003eYou can gain horsepower by reducing the weight of your pulleys and by changing their diameter. We offer aluminum pulleys that are much lighter than the original equipment pulleys, without any reduction in strength. These pulleys are direct replacements and require no modifications for installation. Their light weight not only results in a horsepower increase, but the reduced rotational mass also improves throttle response.\u003c\/p\u003e\n\u003cp\u003eReducing the diameter of the crankshaft drive pulley or increasing the diameter of the driven accessory pulley underdrives the accessory, slowing its rotational speed and reducing the amount of horsepower it draws. However, the size of the pulleys must be carefully calculated so your accessories continue to operate properly. Everyone wants more horsepower, but not with adverse side effects like reduced power steering assist, an alternator that doesn't charge the battery, or an overheated engine. Our pulley kits have been extensively tested to deliver maximum horsepower with no loss of accessory functionality.\u003c\/p\u003e\n\u003cp\u003eUsing underdrive pulleys to reduce accessory drag is an easy and inexpensive way to gain as much as 15 horsepower! Each kit is engineered for the specific application, ensuring straightforward installation. Most kits are designed to use the existing serpentine belt, but a belt is supplied if a different length is required. Most lightweight and underdrive pulleys are machined from high grade aluminum alloy, some with an attractive chrome or anodized finish, so if not for the horsepower increase, you'll want them just for an engine appearance upgrade.\u003c\/p\u003e\n\u003cp\u003eThe accessories on modern vehicles are generally driven by a single serpentine belt, but older performance vehicles used multiple V-belts, and even if tensioned properly, centrifugal force would often cause these belts to jump during high RPM shifts. Then as now, the answer to this problem is a deep groove pulley, but you don't have to spend a lot of time and money searching for an original part that may have been discontinued long ago. We can supply you with pulleys that feature deep, precision machined grooves for secure belt retention even at extreme RPM changes, and some are underdriven so you gain horsepower as well.\u003c\/p\u003e","products":[{"product_id":"1996-2001-mustang-gt-cobra-3-pc-under-drive-pulley-kit-aluminum","title":"BBK 96-01 Mustang 4.6 GT Cobra Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1555)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eLightweight CNC Billet Aluminum Construction -Retains Proper Cooling and Charging\u003c\/li\u003e\u003cli\u003eRe-Uses Factory Length Belt\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210410762327,"sku":"BGRW_1555","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/8b8e4c5716b6b.jpg?v=1724966625"},{"product_id":"1979-1993-mustang-5-0-3-pc-performance-under-drive-pulley-kit-billet-aluminum","title":"BBK 86-93 Mustang 5.0 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1553)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eIncludes Crank Water Pump And Alternator Pulley\u003c\/li\u003e\u003cli\u003eCNC Machined Billet Aluminum Finish\u003c\/li\u003e\u003cli\u003eRe-Uses Factory Serpentine Belt\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210411810903,"sku":"BGRW_1553","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/326d725ff42f6.jpg?v=1724966806"},{"product_id":"1994-1995-mustang-5-0-3-pc-performance-under-drive-pulley-kit-billet-aluminum","title":"BBK 94-95 Mustang 5.0 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1554)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eLightweight CNC Billet Aluminum Construction -Retains Proper Cooling and Charging\u003c\/li\u003e\u003cli\u003eRe-Uses Factory Length Belt\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210414039127,"sku":"BGRW_1554","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/731a5d905a756.jpg?v=1724967124"},{"product_id":"2001-2004-mustang-gt-00-01-cobra-3-pc-under-drive-pulley-kit-billet-aluminum","title":"BBK 02-04 Mustang 4.6 GT Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1559)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eFits Approx April 2001 Thru 2004 Mustang GT \u0026amp; Cobra Applications\u003c\/li\u003e\u003cli\u003eCNC Billet Finish\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210416889943,"sku":"BGRW_1559","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/7aebdb95d326b.jpg?v=1724967270"},{"product_id":"1997-2004-ford-4-6l-5-4l-f-series-exped-3-pc-under-drive-pulley-kit-aluminum","title":"BBK 97-04 Ford F150 Expedition 4.6 5.4 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (15550)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eLightweight CNC Billet Aluminum Construction -Retains Proper Cooling and Charging\u003c\/li\u003e\u003cli\u003eRe-Uses Factory Length Belt\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210418233431,"sku":"BGRW_15550","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/c80bc8a2dd7fa.jpg?v=1724967394"},{"product_id":"1993-1997-gm-lt-1-camaro-firebird-performance-under-drive-pulley-kit-1pc","title":"BBK 93-97 Camaro Firebird LT1 Underdrive Pulley Kit - Aluminum (1591)","description":"\u003cp\u003eThis 1993-1997 GM LT1 BBK Performance Under-drive Crank Pulley is designed as a piggy back for the OE factory harmonic dampener. It is a direct bolt on pulley and will retain full cooling and charging characteristics. \r\nThis BBK under drive crank pulley kit is an easy way to free up an average 8-12 horsepower in under 30 minutes. Each kit comes with complete installation instructions and hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eEasy way to add up to an average of 8-12 horsepower\u003c\/li\u003e\u003cli\u003eRequires a new serpentine belt. (Dayco #5060595 or Gates #K060594).\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210428194903,"sku":"BGRW_1591","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/0978788058010.jpg?v=1724967856"},{"product_id":"1985-1987-gm-5-0-5-7-f-body-gm-truck-3-pc-under-drive-pulley-kit-aluminum","title":"BBK 85-97 GM Truck 305 350 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1598)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eLightweight CNC Billet Aluminum Construction\u003c\/li\u003e\u003cli\u003eBolt On 8-15 Horsepower in Minutes\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210431930455,"sku":"BGRW_1598","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/4c229d13b364b.jpg?v=1724967968"},{"product_id":"1988-1995-gm-truck-4-3-5-0-5-7l-3pc-under-drive-pulley-kit-aluminum","title":"BBK 88-95 GM Truck 4.3 5.0 5.7 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) (1603)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions. Requires the use of a NEW Serpentine Belt - 6 Rib - 91.5\"\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eLightweight CNC Billet Aluminum Construction\u003c\/li\u003e\u003cli\u003eBolt On 8-15 Horsepower in Less than an Hour -Retains Proper Cooling and Charging\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210433405015,"sku":"BGRW_1603","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/1be38c73a9608.jpg?v=1724968047"},{"product_id":"1996-2004-ford-4-6-5-4l-variable-timing-adjuster-crank-pulley-kit","title":"BBK 1996-2004 FORD 4.6\/5.4L VARIABLE TIMING ADJUSTER CRANK PULLEY KIT. (1640)","description":"Since 1988 the BBK Performance brand has been synonymous with bolt-on performance for modern muscle cars and trucks. BBK is armed with nearly 200,000ft of state-of-the-art R\u0026amp;D, manufacturing and distribution in Florida. The BBK brand continues to focus on bringing the best quality, affordably priced performance products built right here in the USA. With over 600 products now available for most Ford, GM, Dodge and Jeep models, BBK continues to design and produce the highest quality dyno proven performance bolt-on parts with the same determination as when Brian Murphy got things started in 1988.\u003cp\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_SHO\u003c\/td\u003e\n\u003ctd\u003eTiming Adjuster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_INV\u003c\/td\u003e\n\u003ctd\u003eBBK Timing Adjuster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DEF\u003c\/td\u003e\n\u003ctd\u003eEngine Variable Valve Timing (VVT) Adjuster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DES\u003c\/td\u003e\n\u003ctd\u003eFORD 4.6\/5.4L VARIABLE TIMING ADJUSTER CRANK PULLEY KIT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_EXT\u003c\/td\u003e\n\u003ctd\u003e1996-2004 FORD 4.6\/5.4L VARIABLE TIMING ADJUSTER CRANK PULLEY KIT.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_MKT\u003c\/td\u003e\n\u003ctd\u003eSince 1988 the BBK Performance brand has been synonymous with bolt-on performance for modern muscle cars and trucks. BBK is armed with nearly 200,000ft of state-of-the-art R\u0026amp;D, manufacturing and distribution in Florida. The BBK brand continues to focus on bringing the best quality, affordably priced performance products built right here in the USA. With over 600 products now available for most Ford, GM, Dodge and Jeep models, BBK continues to design and produce the highest quality dyno proven performance bolt-on parts with the same determination as when Brian Murphy got things started in 1988.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cbr\u003eThis Part Fits:\u003cbr\u003e\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003cth align=\"left\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEquipado\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEquipado\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEquipado\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEquipado\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEquipado\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEquipado\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eMach 1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eMach 1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210435272791,"sku":"BGRW_1640","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/d3dbcfa6bca23.jpg?v=1724968135"},{"product_id":"1994-1998-mustang-3-8l-v6-underdrive-pulley-kit-billet-aluminum","title":"BBK 94-98 Mustang 3.8 V6 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (2pc) (1619)","description":"\u003cp\u003eInstall a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions. Requires a New Belt For Installation\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eDirect Bolt on\u003c\/li\u003e\u003cli\u003eLightweight CNC Billet Pulleys\u003c\/li\u003e\u003cli\u003eReduces Parasitic drag to increase horsepower\u003c\/li\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":41210437926999,"sku":"BGRW_1619","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/d55be20aa0476.jpg?v=1724968207"},{"product_id":"pulley-htd-5m-56-tooth-5-8-inch-bore","title":"Aeromotive Pulley, HTD, 5M, 56-tooth, 5\/8-inch Bore (21116)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41211533066327,"sku":"BGPL_21116","price":127.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/AFS21116.jpg?v=1724997596"},{"product_id":"aeromotive-fuel-systempulley-htd-5m-28-tooth-1-inch-bore-21112","title":"Aeromotive Pulley, HTD, 5M, 1-inch Bore, 28\/32\/36\/40 Tooth - 28 tooth - 50% (21112)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41212062859351,"sku":"BGPL_21112","price":102.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/AFS21112.jpg?v=1725029192"},{"product_id":"aeromotive-fuel-systemcog-belt-pulley-28-tooth-21109","title":"Aeromotive 28 Tooth Cog Belt Pulley (21109)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41212062892119,"sku":"BGPL_21109","price":217.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/AFS21109.jpg?v=1725029203"},{"product_id":"aeromotive-fuel-systemcog-belt-pulley-14-tooth-3-8in-pitch-1in-bo-21108","title":"Aeromotive 14 Tooth Cog Belt Pulley (21108)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41212063121495,"sku":"BGPL_21108","price":120.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/AFS21108.jpg?v=1725029213"},{"product_id":"aprapr-3-0-tfsi-supercharger-drive-and-crank-pulley-with-belt-press-on-ms100184","title":"APR 3.0 TFSI Supercharger Drive and Crank Pulley with Belt (Press on) (MS100184)","description":"\u003cp\u003eAPR's Supercharger Drive Pulley Upgrade decreases the diameter of the factory pulley from ~63.25mm to 57.75mm, which in turn spins the supercharger ~9.5% faster. This results in a healthy bump in horsepower and torque across the entire RPM range with the supercharger operating at a higher rate of speed. The pulley is CNC machined from billet stainless steel, e-coated black for an OEM appearance and is press fitted to the factory supercharger unit.\u003c\/p\u003e\u003cp\u003eAPR's Supercharger Crank Pulley Upgrade increases the diameter of the factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster. This results in a larger bump in horsepower and torque across the entire RPM range, as the supercharger is spinning at an even higher rate of speed. The pulley retains the factory harmonically balanced crank pulley and bolts on top of the existing unit. It is CNC machined from light weight billet aluminum with weight saving pockets throughout. It has an anodized black finish and includes new crank pulley bolts.\u003c\/p\u003e\u003cp\u003eUpgrading both the supercharger drive and crank pulleys results in the factory supercharger spinning ~26.4% faster than stock. This speed was chosen after extensive engine and chassis dyno testing with various pulley sizes and supercharger speeds. The result is an even higher horsepower and torque gain across the entire RPM range. However, at the airflow levels achieved with a dual pulley setup, maximum power is severely restricted by the factory throttle body unit. The APR Ultracharger Throttle Body Upgrade is necessary to take full advantage of the dual pulley configuration, and is available in platform specific variations for the B8\/B8.5 A4\/A4\/S4\/S5, Q5\/SQ5 and C7 A6\/A7.\u003c\/p\u003e\u003cp\u003eBelt Included\u003c\/p\u003e\u003cp\u003eSoftware sold separately\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eFull dual pulley kit\u003c\/li\u003e\u003cli\u003ePress on 57.75mm supercharger drive pulley\u003c\/li\u003e\u003cli\u003eBolt on 187mm crank pulley\u003c\/li\u003e\u003cli\u003eSpins the charger 26.4% faster for massive torque and HP gains with tuning\u003c\/li\u003e\u003cli\u003eAnodized and E-coated factory black\u003c\/li\u003e\u003cli\u003eAppropriate belt included\u003c\/li\u003e\u003cli\u003eRetains factory harmonic balancer\u003c\/li\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":41212414296151,"sku":"HJQF_MS100184","price":614.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/ms100184_002.jpg?v=1725051278"},{"product_id":"aeromotive-fuel-system-billet-lt1-crank-34-under-drive-pulley-serpentine-belt-21101","title":"Aeromotive 34 percent Underdrive Pulley (21101)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41231359082583,"sku":"BGPL_21101","price":152.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/21101.jpg?v=1725512793"},{"product_id":"aeromotive-fuel-system-billet-alternator-32-overdrive-pulley-serpentine-belt-ford-gm-21102","title":"Aeromotive 32 percent Alternator Overdrive Pulley (21102)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41231359475799,"sku":"BGPL_21102","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/21102.jpg?v=1725512807"},{"product_id":"aeromotive-fuel-system-billet-alternator-50-under-drive-pulley-deep-v-groove-ford-gm-21103","title":"Aeromotive 50 percent Alternator Overdrive Pulley (21103)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.\u003c\/p\u003e","brand":"Aeromotive Fuel System","offers":[{"title":"Default Title","offer_id":41231359836247,"sku":"BGPL_21103","price":70.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/21103.jpg?v=1725512819"},{"product_id":"aeromotive-fuel-system-pulley-htd-5m-1-inch-bore-28-32-36-40-tooth-32-tooth-57-21113","title":"Aeromotive Pulley, HTD, 5M, 1-inch Bore, 28\/32\/36\/40 Tooth - 32 tooth - 57% (21113)","description":"\u003cp\u003eAeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. 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It has an anodized black finish and includes new crank pulley bolts.\u003c\/p\u003e\u003cp\u003eUpgrading both the supercharger drive and crank pulleys results in the factory supercharger spinning ~26.4% faster than stock. This speed was chosen after extensive engine and chassis dyno testing with various pulley sizes and supercharger speeds. The result is an even higher horsepower and torque gain across the entire RPM range. However, at the airflow levels achieved with a dual pulley setup, maximum power is severely restricted by the factory throttle body unit. The APR Ultracharger Throttle Body Upgrade is necessary to take full advantage of the dual pulley configuration, and is available in platform specific variations for the B8\/B8.5 A4\/A4\/S4\/S5, Q5\/SQ5 and C7 A6\/A7.\u003c\/p\u003e\u003cp\u003eBelt Included\u003c\/p\u003e\u003cp\u003eSoftware sold separately\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eFull dual pulley kit\u003c\/li\u003e\u003cli\u003eBolt on 57.75mm supercharger drive pulley\u003c\/li\u003e\u003cli\u003eBolt on 187mm crank pulley\u003c\/li\u003e\u003cli\u003eSpins the charger 26.4% faster for massive torque and HP gains with tuning\u003c\/li\u003e\u003cli\u003eAnodized and E-coated factory black\u003c\/li\u003e\u003cli\u003eAppropriate belt included\u003c\/li\u003e\u003cli\u003eRetains factory harmonic balancer\u003c\/li\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":41239258988631,"sku":"HJQF_MS100185","price":614.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/ms100185_002.jpg?v=1725647262"},{"product_id":"apr-fits-audi-a6-quattro-16-18-a7-quattro-16-18-a8-quattro-15-18-q7-17-19-ms100139","title":"APR Supercharger Drive Pulley - 3.0 TFSI (Gen 2 bolt on) (MS100139)","description":"\u003cp\u003eAPR's Supercharger Drive and Crank Pulley Upgrades dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger. APR's Stage II Pulley ECU Upgrade makes the necessary engine management adjustments to handle the increased supercharger speeds, and in turn allows the engine to create more power. The pulleys are sold separately, allowing for multiple levels of performance, each of which builds upon the other. Finally, when combined with APR's Ultracharger Throttle Body Upgrade in a dual pulley setup, the system is alleviated of power robbing inlet restrictions, allowing the engine to achieve exciting new levels of performance!\u003c\/p\u003e\u003cp\u003eAPR's Supercharger Drive Pulley Upgrade decreases the diameter of the factory pulley from ~63.25mm to 57.75mm, which in turn spins the supercharger ~9.5% faster. This results in a healthy bump in horsepower and torque across the entire RPM range with the supercharger operating at a higher rate of speed. The pulley is CNC machined from billet stainless steel, e-coated black for an OEM appearance and is bolted on with new OEM bolts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eBolt on 57.75mm supercharger drive pulley\u003c\/li\u003e\u003cli\u003eSpins the charger 9.5% faster for massive torque and HP gains with tuning\u003c\/li\u003e\u003cli\u003eAnodized and E-coated factory black\u003c\/li\u003e\u003cli\u003eUse APR pulley software for more gains\u003c\/li\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":41239473946711,"sku":"HJQF_MS100139","price":214.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/ms100139_001.jpg?v=1725650003"},{"product_id":"apr-apr-supercharger-crank-pulley-3-0-tfsi-ms100133","title":"APR Supercharger Crank Pulley - 3.0 TFSI (MS100133)","description":"\u003cp\u003eAPR's Supercharger Drive and Crank Pulley Upgrades dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger. APR's Stage II Pulley ECU Upgrade makes the necessary engine management adjustments to handle the increased supercharger speeds, and in turn allows the engine to create more power. The pulleys are sold separately, allowing for multiple levels of performance, each of which builds upon the other. Finally, when combined with APR's Ultracharger Throttle Body Upgrade in a dual pulley setup, the system is alleviated of power robbing inlet restrictions, allowing the engine to achieve exciting new levels of performance!\u003c\/p\u003e\u003cp\u003eAPR's Supercharger Crank Pulley Upgrade increases the diameter of the factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster. This results in a larger bump in horsepower and torque across the entire RPM range, as the supercharger is spinning at an even higher rate of speed. The pulley retains the factory harmonically balanced crank pulley and bolts on top of the existing unit. It is CNC machined from light weight billet aluminum with weight saving pockets throughout. It has an anodized black finish and includes new crank pulley bolts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003eBolt on crank pulley\u003c\/li\u003e\u003cli\u003eRetains harmonic balancer\u003c\/li\u003e\u003cli\u003eBolt on 187mm crank pulley\u003c\/li\u003e\u003cli\u003eSpins the charger 15.4% faster for massive torque and HP gains with tuning\u003c\/li\u003e\u003cli\u003eAnodized and E-coated factory black\u003c\/li\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":41239479255127,"sku":"HJQF_MS100133","price":332.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/ms100133_001.jpg?v=1725650246"},{"product_id":"apr-apr-supercharger-drive-pulley-3-0-tfsi-ms100135","title":"APR Supercharger Drive Pulley - 3.0 TFSI (MS100135)","description":"\u003cp\u003eAPR's Supercharger Drive and Crank Pulley Upgrades dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger. APR's Stage II Pulley ECU Upgrade makes the necessary engine management adjustments to handle the increased supercharger speeds, and in turn allows the engine to create more power. The pulleys are sold separately, allowing for multiple levels of performance, each of which builds upon the other. Finally, when combined with APR's Ultracharger Throttle Body Upgrade in a dual pulley setup, the system is alleviated of power robbing inlet restrictions, allowing the engine to achieve exciting new levels of performance!\u003c\/p\u003e\u003cp\u003eAPR's Supercharger Drive Pulley Upgrade decreases the diameter of the factory pulley from ~63.25mm to 57.75mm, which in turn spins the supercharger ~9.5% faster. This results in a healthy bump in horsepower and torque across the entire RPM range with the supercharger operating at a higher rate of speed. The pulley is CNC machined from billet stainless steel, e-coated black for an OEM appearance and is press fitted to the factory supercharger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePress on 57.75mm supercharger drive pulley\u003c\/li\u003e\u003cli\u003eSpins the charger 9.5% faster for massive torque and HP gains with tuning\u003c\/li\u003e\u003cli\u003eAnodized and E-coated factory black\u003c\/li\u003e\u003cli\u003eUse APR pulley software for more gains\u003c\/li\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":41239485743191,"sku":"HJQF_MS100135","price":214.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/ms100135_001.jpg?v=1725650399"},{"product_id":"grimmspeed-crank-pulley-removal-install-tool-for-subaru-grimmspeed-095011","title":"GrimmSpeed Crank Pulley Removal\/Install Tool (095011)","description":"\u003cp\u003eThe long awaited answer to the antique Subaru pulley removal tool, bolts stuck through boards, and random screws welded to bars. Our tool was engineered with full compatibility in mind being able to work with our Lightweight Crank Pulley as well as BOTH styles of Subaru crank pulleys. It is the must have for any hardcore Subaru enthusiast or mechanic and will come with everything you need to do thousands of installs! Heavy duty is the name of the game, laser cut from a 9.5mm plate of 12L14 and yellow zinc chromate coated for longevity. We even incorporated a 1\/2\" socket wrench location so that you can put all might into it! The right tools to get the job done, it's what you can expect from GrimmSpeed\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eFits all Impreza\/WRX\/STi 1993-2011, Legacy 1994-2009, Forester 1998-2009\u003c\/li\u003e\n\u003cli\u003eFirst of its kind tool that works with the 2 OEM Pulleys and GS Aftermarket Pulley\u003c\/li\u003e\n\u003cli\u003eIncludes Plastic Washers (Won't Damage Surface)\u003c\/li\u003e\n\u003cli\u003eUses large 1\/2\" Socket Wrench\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267252920407,"sku":"JBCB_095011","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095011-JBCB.jpg?v=1726227701"},{"product_id":"grimmspeed-crank-pulley-adapter-for-gates-stretch-belt-kit-for-subaru-08-ej-engines-grimmspeed-095012","title":"GrimmSpeed Pulley Adapter for Gates Stretch Belt 08+ EJ Engine Kit (095012)","description":"\u003cp\u003eThis is the Grimmspeed Gates Stretch Belt Pulley Adapter which has been designed to be used specifically with the Gates Stretch Belt Kit with the Grimmspeed Pulley. The Gates Stretch Belt Kit will not work with some other types of aftermarket manufactures, with that said this adapter is intended to be used for those with the Grimmspeed pulley. Hardware will be included to make this component ready for the installation. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDesigned to deliver trouble-free, consistent performance\u003c\/li\u003e\n\u003cli\u003eRight for your vehicle and lifestyle\u003c\/li\u003e\n\u003cli\u003eMade from high-quality materials for ultimate durability\u003c\/li\u003e\n\u003cli\u003eManufactured to meet or exceed strict quality requirements\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267252953175,"sku":"JBCB_095012","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095012-JBCB.jpg?v=1726227716"},{"product_id":"grimmspeed-lightweight-crank-pulley-black-for-subaru-all-ej-engines-grimmspeed-095015bk","title":"GrimmSpeed Lightweight Crank Pulley Black - Subaru All EJ Engines (095015BK)","description":"\u003cp\u003eLightweight Crank Pulley (095015BK) by GrimmSpeed. 1 Piece. Finish: Black. In GrimmSpeed opinion, the OEM Subaru crank pulley has been a cause for concern ever since its original design. It is relatively heavy, susceptible to catastrophic failure, and quite unsightly. Continuing to use this on our cars just wouldn't do. Eliminating rotational mass while maintaining a safe presence can increase reliability and bring faster Rev's! For our Lightweight Crank Pulley we pulled out all of the stops. CNC machined from 6061 T6 Aluminum our pulley makes no compromise. It weighs in at 3.5lbs lighter than OEM while at the same time increasing its durability. Marked with a timing mark and perfect cut keyway makes this install a breeze. We designed the pulley with the optimum weight for performance while avoiding misfire CEL's and engine hesitation.For GrimmSpeed`s Lightweight Crank Pulley pulled out all of the stops. CNC machined from 6061 T6 Aluminum pulley makes no compromise. Marked with a timing mark and perfect cut keyway makes this install a breeze. GrimmSpeed designed the pulley with the optimum weight for performance while avoiding misfire CEL's and engine hesitation. Achieving balance between performance and design while not sacrificing either, it's what you can expect from GrimmSpeed. \u003c\/p\u003e\u003cp\u003e GrimmSpeed was founded in 2006 to provide customers with innovative and highly engineered aftermarket products. In short, we are a small group of highly dedicated car nuts who work in Minneapolis, Minnesota. GrimmSpeed bread and butter started out anything Subaru. However, after growing GrimmSpeed team and engineering we started developing products for: Mitsubishi, MazdaSpeed, and Hyundai markets. GrimmSpeed are a true garage start-up and we've been lucky enough over the years to be able to turn it into exactly the business I had dreamed....probably a lot more actually. GrimmSpeed have a wide breadth of expertise consisting of exhaust design, gaskets, pullies, phenolic spacers, porting and polishing(services that our company was actually founded on), boost controllers, and many more.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDecreases rotational mass more than 3.5lbs over OEM (You will see much faster revs as a result)\u003c\/li\u003e\n\u003cli\u003eFactory Fit for clean install\u003c\/li\u003e\n\u003cli\u003eOptimum weight to avoid misfire CELs or hesitation\u003c\/li\u003e\n\u003cli\u003e2008+ OEM Subaru Stretch Belt Install Kit Option (No other company offers this Optional Add-On)\u003c\/li\u003e\n\u003cli\u003eBalanced CNC machined 6061 T6 anodized Aluminum\u003c\/li\u003e\n\u003cli\u003eIncludes OEM timing marks for timing verification\u003c\/li\u003e\n\u003cli\u003eExpertly made from sturdy materials\u003c\/li\u003e\n\u003cli\u003eMade to help enhance the performance of your vehicle\u003c\/li\u003e\n\u003cli\u003ePerfect solution for racing and high-performance engine applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/Bp6fZXCrs-k\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/R4w3tJGozCM\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267253018711,"sku":"JBCB_095015BK","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095015BK-JBCB.jpg?v=1726227730"},{"product_id":"grimmspeed-lightweight-crank-pulley-red-for-subaru-all-ej-engines-grimmspeed-095015r","title":"GrimmSpeed Lightweight Crank Pulley Red - Subaru All EJ Engines (095015R)","description":"\u003cp\u003eLightweight Crank Pulley by GrimmSpeed. 1 Piece. Finish: Red. In GrimmSpeed opinion, the OEM Subaru crank pulley has been a cause for concern ever since its original design. It is relatively heavy, susceptible to catastrophic failure, and quite unsightly. Continuing to use this on our cars just wouldn't do. Eliminating rotational mass while maintaining a safe presence can increase reliability and bring faster Rev's! For our Lightweight Crank Pulley we pulled out all of the stops. CNC machined from 6061 T6 Aluminum our pulley makes no compromise. It weighs in at 3.5lbs lighter than OEM while at the same time increasing its durability. Marked with a timing mark and perfect cut keyway makes this install a breeze. We designed the pulley with the optimum weight for performance while avoiding misfire CEL's and engine hesitation.For GrimmSpeed`s Lightweight Crank Pulley pulled out all of the stops. CNC machined from 6061 T6 Aluminum pulley makes no compromise. Marked with a timing mark and perfect cut keyway makes this install a breeze. GrimmSpeed designed the pulley with the optimum weight for performance while avoiding misfire CEL's and engine hesitation. Achieving balance between performance and design while not sacrificing either, it's what you can expect from GrimmSpeed. \u003c\/p\u003e\u003cp\u003e GrimmSpeed was founded in 2006 to provide customers with innovative and highly engineered aftermarket products. In short, we are a small group of highly dedicated car nuts who work in Minneapolis, Minnesota. GrimmSpeed bread and butter started out anything Subaru. However, after growing GrimmSpeed team and engineering we started developing products for: Mitsubishi, MazdaSpeed, and Hyundai markets. GrimmSpeed are a true garage start-up and we've been lucky enough over the years to be able to turn it into exactly the business I had dreamed....probably a lot more actually. GrimmSpeed have a wide breadth of expertise consisting of exhaust design, gaskets, pullies, phenolic spacers, porting and polishing(services that our company was actually founded on), boost controllers, and many more.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDecreases rotational mass more than 3.5lbs over OEM (You will see much faster revs as a result)\u003c\/li\u003e\n\u003cli\u003eFactory Fit for clean install\u003c\/li\u003e\n\u003cli\u003eOptimum weight to avoid misfire CELs or hesitation\u003c\/li\u003e\n\u003cli\u003e2008+ OEM Subaru Stretch Belt Install Kit Option (No other company offers this Optional Add-On)\u003c\/li\u003e\n\u003cli\u003eBalanced CNC machined 6061 T6 anodized Aluminum\u003c\/li\u003e\n\u003cli\u003eIncludes OEM timing marks for timing verification\u003c\/li\u003e\n\u003cli\u003eExpertly made from sturdy materials\u003c\/li\u003e\n\u003cli\u003eMade to help enhance the performance of your vehicle\u003c\/li\u003e\n\u003cli\u003ePerfect solution for racing and high-performance engine applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/Bp6fZXCrs-k\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/R4w3tJGozCM\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267253051479,"sku":"JBCB_095015R","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095015R-JBCB.jpg?v=1726227744"},{"product_id":"grimmspeed-lightweight-crank-pulley-black-for-subaru-fa-fb-engines-equipped-w-1-piece-oem-pulley-grimmspeed-095023","title":"GrimmSpeed Lightweight Crank Pulley Black - Subaru FA\/FB Engines (095023)","description":"\u003cp\u003eYour factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a\/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener, which it does not). The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate the rotating assembly more quickly. \u003c\/p\u003e\u003cp\u003e The design process for this pulley ensured that a perfect factory replacement fitment was maintained while performance was maximized. It's a common misconception that the mass of a crank pulley alone determines its effectiveness. The truth is that it's actually the moment of inertia that affects the pulley's ability to improve engine and throttle response. The moment of inertia, in non-engineering terms, is a function of not only the mass of an object, but how that mass is distributed about it's rotational axis. A lower moment of inertia means that less torque is required to spin the crank pulley and, in turn, the crankshaft\/engine. Our engineers took great care to keep the already minimal mass as close to the center of the pulley as possible without sacrificing its strength. The result is a pulley that fits well, looks beautiful and works exactly as intended. From the first test drive, you'll notice smoother operation, faster response and a more enjoyable drive. Much of this is difficult to quantify, but you can see from the datalogs below that when compared to the OEM pulley, the GrimmSpeed Crank Pulley quantitatively improved throttle response. \u003c\/p\u003e\u003cp\u003e nother major improvement made is that you'll find the necessary threaded holes to use our Crank Pulley Removal Tool for safe and easy installation and removal. On newer vehicles, cars can simply be put into a high gear to break the crank pulley bolt loose, but as with older chassis vehicles, this bolt will likely become quite stubborn with time. The use of the GrimmSpeed Removal Tool will make removal quick and easy. Like any GrimmSpeed product, these pulleys are built to last. Using locally sourced 6061 T6 aluminum billet, the pulleys are machined and measured to verify critical dimensions before being anodized. The bright dip anodizing process that we use ensures a durable finish that will protect the pulley from corrosion. Lastly, each pulley is laser etched with a sharp GrimmSpeed logo. Proven performance from a crank pulley can be difficult to quantify, but when you're pulley is meticulously engineered, the results are there. Below is a chart showing the free revving of a stock BRZ equipped with a stock pulley and then a GrimmSpeed pulley. It's easy to see that the engine reaches redline faster and drops to idle faster with the GrimmSpeed Lightweight Crank Pulley installed. That's improved throttle response that you'll appreciate immediately. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e75% Reduction in Rotating Mass - weighs 1.1lb vs the 4.4lb OEM pulley\u003c\/li\u003e\n\u003cli\u003eMachined 6061 T6 Aluminum - high quality, precision construction\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish - ensures a durable finish and resists corrosion\u003c\/li\u003e\n\u003cli\u003eRemoval Tool Mounting - allows the use of the GrimmSpeed Crank Pulley Tool\u003c\/li\u003e\n\u003cli\u003eFactory Fitment - direct replacement for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267253182551,"sku":"JBCB_095023","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095023-JBCB.jpg?v=1726227768"},{"product_id":"grimmspeed-lightweight-crank-pulley-red-for-subaru-fa-fb-engines-equipped-w-1-piece-oem-pulley-grimmspeed-095024","title":"GrimmSpeed Lightweight Crank Pulley Red - Subaru FA\/FB Engines (095024)","description":"\u003cp\u003eYour factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a\/c compressor and alternator. It does this by way of a rubber belt and it does it's job well. The drawback to the factory pulley is that it's quite heavy. Reasons for this include less expensive manufacturing and using the pulley's mass to smooth out 'noise' in the accessory system (NOT to be confused with functioning as a harmonic dampener, which it does not). The GrimmSpeed Lightweight Crank Pulley reduces the rotational mass of the system, allowing your engine to accelerate and decelerate the rotating assembly more quickly. \u003c\/p\u003e\u003cp\u003e The design process for this pulley ensured that a perfect factory replacement fitment was maintained while performance was maximized. It's a common misconception that the mass of a crank pulley alone determines its effectiveness. The truth is that it's actually the moment of inertia that affects the pulley's ability to improve engine and throttle response. The moment of inertia, in non-engineering terms, is a function of not only the mass of an object, but how that mass is distributed about it's rotational axis. A lower moment of inertia means that less torque is required to spin the crank pulley and, in turn, the crankshaft\/engine. Our engineers took great care to keep the already minimal mass as close to the center of the pulley as possible without sacrificing its strength. The result is a pulley that fits well, looks beautiful and works exactly as intended. From the first test drive, you'll notice smoother operation, faster response and a more enjoyable drive. Much of this is difficult to quantify, but you can see from the datalogs below that when compared to the OEM pulley, the GrimmSpeed Crank Pulley quantitatively improved throttle response. \u003c\/p\u003e\u003cp\u003e nother major improvement made is that you'll find the necessary threaded holes to use our Crank Pulley Removal Tool for safe and easy installation and removal. On newer vehicles, cars can simply be put into a high gear to break the crank pulley bolt loose, but as with older chassis vehicles, this bolt will likely become quite stubborn with time. The use of the GrimmSpeed Removal Tool will make removal quick and easy. Like any GrimmSpeed product, these pulleys are built to last. Using locally sourced 6061 T6 aluminum billet, the pulleys are machined and measured to verify critical dimensions before being anodized. The bright dip anodizing process that we use ensures a durable finish that will protect the pulley from corrosion. Lastly, each pulley is laser etched with a sharp GrimmSpeed logo. Proven performance from a crank pulley can be difficult to quantify, but when you're pulley is meticulously engineered, the results are there. Below is a chart showing the free revving of a stock BRZ equipped with a stock pulley and then a GrimmSpeed pulley. It's easy to see that the engine reaches redline faster and drops to idle faster with the GrimmSpeed Lightweight Crank Pulley installed. That's improved throttle response that you'll appreciate immediately. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e75% Reduction in Rotating Mass - weighs 1.1lb vs the 4.4lb OEM pulley\u003c\/li\u003e\n\u003cli\u003eMachined 6061 T6 Aluminum - high quality, precision construction\u003c\/li\u003e\n\u003cli\u003eHard Anodized Finish - ensures a durable finish and resists corrosion\u003c\/li\u003e\n\u003cli\u003eRemoval Tool Mounting - allows the use of the GrimmSpeed Crank Pulley Tool\u003c\/li\u003e\n\u003cli\u003eFactory Fitment - direct replacement for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267253313623,"sku":"JBCB_095024","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095024-JBCB.jpg?v=1726227795"},{"product_id":"grimmspeed-lightweight-crank-pulley-hub-for-subaru-19-21-wrx-for-use-w-grimmspeed-lw-crank-pulley-grimmspeed-095034","title":"Lightweight Crank Pulley Hub - Subaru 19-21 WRX [For use w\/GrimmSpeed LW Crank Pulley] (095034)","description":"While the 2015-18 Subaru WRX utilizes a standard crank pulley design, which can easily be switched out with the current GrimmSpeed FA Lightweight Pulley, the 2019-21 WRX is a different story. The OEM pulley design for the newer version incorporates a rear hub into the pulley itself, which gives you very limited options when looking to upgrade to an aftermarket pulley. Our Engineers saw this as an opportunity for a plug-and-play solution and got to work. This new GrimmSpeed FA Lightweight Crank Pulley Hub allows 19-21 WRX owners with the heavy OEM one-piece crank pulley\/hub assembly to use our popular lightweight crank pulleys. Machined from A311 Steel Alloy and zinc-plated, this beautiful, extremely durable hub will ensure that the oil pump and crank pulley are driven without danger of leaks or failure. Coupled with our LW Crank Pulley, this will take significant weight off the rotating assembly of your FA engine, allowing it to rev more freely. 19-21 WRX Owners can now be among the tens of thousands using a GrimmSpeed-brand Crank Pulley! \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMachined from A311 Steel Alloy\u003c\/li\u003e\n\u003cli\u003eLaser Etched GrimmSpeed Logo\u003c\/li\u003e\n\u003cli\u003eZinc Plated to Prevent Corrosion\u003c\/li\u003e\n\u003cli\u003eIncludes High Quality Buna-N O-RING \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":41267253510231,"sku":"JBCB_095034","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/095034-JBCB.jpg?v=1726227822"},{"product_id":"active-autowerke-underdrive-pulley-kit-e6x-m5-m6-13-002","title":"Active Autowerke Underdrive Pulley Kit - E6x M5 \/ M6 (13-002)","description":"\u003cp\u003eThe Active Autowerke Underdrive Pulley Kit for E6x M5 and M6 is designed to optimize power delivery by reducing parasitic drag on the BMW S65 V10 engine's accessory components that share the drive belt system. This kit modifies pulley drive ratios to reduce engine load from accessories such as air conditioning and power steering, thereby unlocking additional horsepower.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCrafted from aircraft-grade 6061 billet aluminum with a hard black anodized finish for durability and quiet operation\u003c\/li\u003e\n\u003cli\u003ePrecisely engineered pulley diameter, groove pitch, and belt alignment with optimized pulley offset\u003c\/li\u003e\n\u003cli\u003eIncludes replacement drive and A\/C belts for a complete bolt-on installation\u003c\/li\u003e\n\u003cli\u003eRetains the factory crank hex drive adapter and does not alter factory harmonic dampening\u003c\/li\u003e\n\u003cli\u003eReduces rotational mass without causing the overheating issues associated with smaller pulley designs\u003c\/li\u003e\n\u003cli\u003eInstallation is straightforward and fully reversible, maintaining near-factory appearance\u003c\/li\u003e\n\u003cli\u003eCompatible with other Active Autowerke performance products such as performance software and exhaust systems\u003c\/li\u003e\n\u003cli\u003eDemonstrated power gains of approximately 10 to 12+ rear wheel horsepower on in-house dynamometer testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis pulley kit is an effective performance upgrade for BMW M enthusiasts seeking to enhance engine efficiency by optimizing accessory drive load without compromising reliability or factory component function.\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":41284071096407,"sku":"13-002","price":469.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/8642\/1591\/files\/ShowProductImage_1aa5fcc2-96fd-4908-a732-574275a990e7.jpg?v=1727185285"},{"product_id":"active-autowerke-underdrive-pulley-kit-e9x-m3-13-001","title":"Active Autowerke Underdrive Pulley Kit - E9X M3 (13-001)","description":"\u003cp\u003eThe Active Autowerke Underdrive Pulley Kit for the E9X M3 is a complete bolt-on upgrade engineered specifically for BMW performance tuning. 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Free up some hidden horsepower with the aFe Power Pulley! The Power Pulley replaces your factory crankshaft pulley. It underdrives your engine's accessories to reduce the parasitic loss, increasing horsepower to the rear wheels without any loss of vehicle functionality. It comes complete with new belts and all the necessary hardware.\u003c\/p\u003e\u003cp\u003eThe engineers at aFe are not only skilled at making products that enable your engine to make more power, they're also skilled at finding and freeing up horsepower your engine is already making. Crankshaft-driven accessories like the alternator and power steering pump take horsepower to turn?horsepower that could be going to your rear wheels. aFe found that be reducing the size of the crankshaft accessory drive pulley, they could underdrive the accessory pulleys and reduce the power consumed by the accessories (parasitic loss), without affecting their operation. Your alternator, power steering and anything else driven by the crankshaft pulley still function effectively, but more power is now available for the driveline. You get more horsepower and torque for increased performance.\u003c\/p\u003e\u003cp\u003eThe aFe power pulley is not only a great performance enhancing product; it's a product that will also look great under the hood. It's CNC machined from billet aluminum, and then black anodized for an aggressive look. It comes with new accessory drive belts that are properly sized for the new pulley. All of the included mounting hardware is made to BMW specifications. And the Power Pulley won't affect factory crankshaft harmonics or damping.\u003c\/p\u003e\u003cp\u003eaFe (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. 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Your alternator, power steering and anything else driven by the crankshaft pulley still function effectively, but more power is now available for the driveline. You get more horsepower and torque for increased performance.\u003c\/p\u003e\u003cp\u003eThe aFe power pulley is not only a great performance enhancing product; it's a product that will also look great under the hood. It's CNC machined from billet aluminum, and then black anodized for an aggressive look. It comes with new accessory drive belts that are properly sized for the new pulley. All of the included mounting hardware is made to BMW specifications. And the Power Pulley won't affect factory crankshaft harmonics or damping.\u003c\/p\u003e\u003cp\u003eaFe (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. 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