{"title":"Pulleys","description":"\u003cp\u003eShop Subaru engine pulleys at IAG Performance, including ATI Super Damper crank pulleys, Gates idler and cam timing pulleys, and Kartboy, GReddy, and Perrin accessory pulleys for EJ20, EJ25, and FA20 engines. Upgraded pulleys help manage harmonics and improve reliability in higher-RPM, higher-boost builds, and a quality crank pulley in particular can reduce the risk of harmonic-related failures that plague stock pulleys under sustained high load.\u003c\/p\u003e","products":[{"product_id":"gates-subaru-ej20-2-0l-ej25-2-5l-lower-upper-left-cam-timing-idler-pulley-2-required-t42194","title":"Gates Subaru EJ20 2.0L EJ25 2.5L Lower \u0026 Upper Left Cam Timing Idler Pulley 2 Required - T42194","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003eGates PowerGrip® Idler Pulleys can be either a fixed idler or a replacement for a tensioner bracket. They can be constructed of metallic or plastic material and there are two basic surfaces – smooth and grooved (also called a sprocket).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered with OE quality or OE exact fit.\u003c\/li\u003e\n\u003cli\u003ePremium bearings meet or exceed OE standards.\u003c\/li\u003e\n\u003cli\u003eHardware provided as needed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":48062342136026,"sku":"ds_BBSC_T42194","price":94.61,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/T42194__35224.1661792238.1280.1280.jpg?v=1781529761"},{"product_id":"gates-subaru-ej20-2-0l-ej25-2-5l-right-hand-cam-timing-idler-pulley-t41239","title":"Gates Subaru EJ20 2.0L EJ25 2.5L Right Hand Cam Timing Idler Pulley - T41239","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003eGates PowerGrip® Idler Pulleys can be either a fixed idler or a replacement for a tensioner bracket. They can be constructed of metallic or plastic material and there are two basic surfaces – smooth and grooved (also called a sprocket).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered with OE quality or OE exact fit.\u003c\/li\u003e\n\u003cli\u003ePremium bearings meet or exceed OE standards.\u003c\/li\u003e\n\u003cli\u003eHardware provided as needed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":48062342037722,"sku":"ds_BBSC_T41239","price":78.53,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/T41239__30349.1661792177.1280.1280.jpg?v=1781529760"},{"product_id":"greddy-fa20-pulley-kit-special-order-13512111","title":"GReddy FA20 Pulley Kit (Special Order) - 13512111","description":"\u003cp\u003eGReddy FA20 Pulley Kit (Special Order)\u003c\/p\u003e","brand":"GReddy","offers":[{"title":"Default Title","offer_id":48062351016154,"sku":"ds_BHXF_13512111","price":741.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/13512111__60378.1663253336.1280.1280.png?v=1781529806"},{"product_id":"perrin-93-impreza-wrx-sti-crank-pulley-red-psp-eng-100rd","title":"PERRIN Lightweight Red Crank Pulley For 2002-14 Subaru WRX, 04-20 STI, 05-09 LGT, 04-14 FXT - PSP-ENG-100RD","description":"\u003ch2 style=\"text-align:center;\"\u003eLIGHTWEIGHT CRANK PULLEY FOR WRX\/STI\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eThe PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the gas pedal.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDecrease Rotational Mass\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Lightweight Crank Pulley weighs just 1.2lbs, which is 3.7 pounds lighter than the stock OEM crank pulley. This reduction in weight from the crankshaft is equal to removing more than 100 lbs of vehicle weight! Throttle response, horsepower, and torque are all increased with this easy-to-install part.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003cbr\u003ePrecision machined grooves, tightly sync with all OEM and aftermarket belts. The PERRIN Lightweight Crank Pulley fits great on all 1993 or newer Subaru engines, the rear belt keeper for AC cars is minimized to make installation on 2008+ Subarus easier!\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Crank Pulley is machined from 6061 T6 billet aluminum, anodized red and laser etched for increased belt life and a precision fit.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Performance\u003c\/strong\u003e\u003cbr\u003eBy removing the air conditioning belt drive, they have made a specialized version of their crank pulley for those building engines for the highest levels of horsepower \u0026amp; torque.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.\u003c\/p\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062407114970,"sku":"PERPSP-ENG-100RD","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apidmqhwg__59613.1633558704.386.513__45100.1642519210.1280.1280.jpg?v=1781530008"},{"product_id":"perrin-crank-pulley-for-2013-20-subaru-brz-13-16-fr-s-17-20-86-black-psp-eng-101bk","title":"PERRIN Crank Pulley For 2013-20 Subaru BRZ, 13-16 FR-S, 17-20 86 - Black - PSP-ENG-101BK","description":"\u003ch2 style=\"text-align:center;\"\u003eLIGHTWEIGHT CRANK PULLEY FOR BRZ\/FR-S\/86\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eThe PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the gas pedal.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDecrease Rotational Mass\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Lightweight Crank Pulley weighs just 1.2lbs, which is 3.7 pounds lighter than the stock OEM crank pulley. This reduction in weight from the crankshaft is equal to removing more than 100 lbs of vehicle weight! Throttle response, horsepower, and torque are all increased with this easy-to-install part.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003cbr\u003eDesigned to look mean and fast, the PERRIN Crank Pulley has precision-machined grooves that tightly sync with all OEM and aftermarket belts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Crank Pulley is machined from 6061 T6 billet aluminum, anodized black and laser etched for increased belt life and a precision fit.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN Lightweight Crank Pulley\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062407606490,"sku":"PERPSP-ENG-101BK","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-ENG-101BK__30946.1662138259.1280.1280.jpg?v=1781530009"},{"product_id":"perrin-crank-pulley-for-2013-20-subaru-brz-13-16-fr-s-17-20-86-red-psp-eng-101rd","title":"PERRIN Crank Pulley For 2013-20 Subaru BRZ, 13-16 FR-S, 17-20 86 - Red - PSP-ENG-101RD","description":"\u003ch2 style=\"text-align:center;\"\u003eLIGHTWEIGHT CRANK PULLEY FOR BRZ\/FR-S\/86\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eThe PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the gas pedal.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDecrease Rotational Mass\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Lightweight Crank Pulley weighs just 1.2lbs, which is 3.7 pounds lighter than the stock OEM crank pulley. This reduction in weight from the crankshaft is equal to removing more than 100 lbs of vehicle weight! Throttle response, horsepower, and torque are all increased with this easy-to-install part.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003cbr\u003eDesigned to look mean and fast, the PERRIN Crank Pulley has precision-machined grooves that tightly sync with all OEM and aftermarket belts.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Crank Pulley is machined from 6061 T6 billet aluminum, anodized red and laser etched for increased belt life and a precision fit.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eIN THE BOX\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e(1) PERRIN Lightweight Crank Pulley\u003c\/li\u003e\n\u003cli\u003eWarranty \u0026amp; Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062405705946,"sku":"PERPSP-ENG-101RD","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/PSP-ENG-101RD__23200.1662138295.1280.1280.jpg?v=1781530010"},{"product_id":"fluidampr-steel-internally-balanced-damper-for-2015-21-subaru-wrx-13-21-brz-571101","title":"Fluidampr Steel Internally Balanced Damper For 2015-21 Subaru WRX, 13-21 BRZ - 571101","description":"\u003ch2 style=\"text-align:center;\"\u003eFLUIDAMPR PERFORMANCE DAMPER FOR SUBARU\u003c\/h2\u003e\n\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\n\u003cp\u003eHere, you are looking at the Fluidampr High-Performance Harmonic Balancer. The Fluidampr unit is a torsional vibration damper. It has been designed to provide durability by controlling destructive vibration. As you perform performance upgrades that add more horsepower and torque to your vehicle, you risk overworking your stock engine damper, and changes to your rotating assembly can shift destructive engine harmonics. The Fluidampr unit will provide protection across the entire RPM range and can accommodate future engine modifications without the need to re-tune, and is a proven product utilized and trusted on high-horsepower applications.\u003c\/p\u003e\n\u003ch2 style=\"text-align:center;\"\u003eFLUIDAMPR VS LIGHTWEIGHT CRANKSHAFT PULLEY\u003c\/h2\u003e\n\u003cp\u003eTesting revealed consistent performance gains above 4000rpm compared to both an OEM tuned elastomer damper and a lightweight crankshaft pulley. The lightweight crank pulley tested provided no torsional vibration protection and left internal components susceptible to potentially destructive high frequency vibration between 5,000 – 7,000rpm.\u003c\/p\u003e\n\u003ch2 style=\"text-align:center;\"\u003eCRANK PULLEY WEIGHT CONSIDERATIONS – LIGHTER IS NOT ALWAYS BETTER\u003c\/h2\u003e\n\u003cp\u003eComparative gains between 4,000rpm – 7,000rpm at only 150rwhp on a near stock Scion FR-S were noticed.  Why did the Fluidampr, at 4.6lbs heavier than the 1.195lbs lightweight crank pulley, come out on top? “Excessive crankshaft torsional vibration robs power and accelerates component wear. You need proper mass with broad range damping to control it. The more power you add, the more you need to upgrade to a quality viscous damper for durability and optimum performance,” concludes Vibratech TVD \/ Fluidampr Sr. Design Engineer, Aaron Neyman. “Mass also determines where rotating assembly resonance points will occur. As shown during testing, without proper mass the lightweight pulley shifted a new high frequency resonance point into the operating range. This became prevelant in the 6th order vibration amplitude comparision.  Flywheel\/flexplate, crankshaft, rod \u0026amp; piston changes can all have similar harmonic effects.”\u003cbr\u003e\u003cbr\u003eThe second advantage in favor of the Fluidampr performance damper is the concept of rotating weight. While the overall weight is 5.8lbs, because the inner inertia ring is not bonded and freely rotates, its weight is not fully felt by the crankshaft once the engine is operating. It can be calculated that the rotating weight of a viscous damper is roughly 2\/3 its overall weight. Meaning at rpm, the rotational weight spinning in unison with the crankshaft feels more like 3.8lbs. That, plus broad range damping, gave it the edge over the stock tuned elastomer damper.\u003c\/p\u003e","brand":"Fluidampr","offers":[{"title":"Default Title","offer_id":48062429135066,"sku":"ds_DVTK_571101","price":482.92,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/6abb854b7b0e5ee3056fb05143d94547__37408.1763138222.1280.1280.jpg?v=1781530080"},{"product_id":"fluidampr-subaru-ej-series-steel-internally-balanced-damper-531101","title":"Fluidampr Balanced Engine Crank Pulley For Subaru EJ20 \u0026 EJ25 Engines","description":"\u003cp\u003eAdditional power and RPM from upgrades increases the naturally occurring characteristics of harmful crankshaft torsional vibrations. By installing a Fluidampr viscous damper (crank pulley) you will reduce wear on the main bearings and timing gear, achieve more accurate valvetrain operation and lower the risk of crank failure. \u003cbr\u003e\u003cbr\u003eUnlike rubber based dampers, Fluidampr automatically adapts to your modifications, then continuously self-tunes in real time to optimum damping at both peak levels and across a broad changing frequency range. As the engine revs up, torsional vibration suspends the inertia ring and reduces its weight felt on the crankshaft. Measured as rotating weight, this effect helps maintain quick revs while preserving optimum dampening. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Fluidampr","offers":[{"title":"Default Title","offer_id":48062458462426,"sku":"FDR531101","price":482.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/a4e773ec10813059a21b951c2256aaac__28555.1694703749.1280.1280.jpg?v=1781530169"},{"product_id":"subaru-timing-belt-small-idler-pulley-bolt-for-2004-14-wrx-04-21-sti","title":"Subaru Timing Belt Small Idler Pulley Bolt for 2004-14 WRX, 04-21 STI","description":"\u003cp\u003eThe Subaru FHI timing belt small idler flange bolt fits the 2004-21 STI and 2002-2021 WRX. The small timing idler pulley was re-designed on 2004+ EJ vehicles to incorporate two bearings instead of one which improved the overall reliability of the pulley. The updated idler requires this longer bolt for fitment or replacement.   \u003c\/p\u003e","brand":"Subaru","offers":[{"title":"Default Title","offer_id":48062461116634,"sku":"800708460","price":1.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/800708460-01__25028.1653339253.1280.1280.jpg?v=1781530202"},{"product_id":"perrin-lightweight-crank-pulley-for-2004-21-subaru-wrx-sti-black-psp-eng-100bk","title":"PERRIN Lightweight Crank Pulley For 2004-21 Subaru WRX STI - Black - PSP-ENG-100BK","description":"\u003ch2 style=\"text-align:center;\"\u003eLIGHTWEIGHT CRANK PULLEY FOR WRX\/STI\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eThe PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the gas pedal.\u003c\/p\u003e\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDecrease Rotational Mass\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Lightweight Crank Pulley weighs just 1.2 lbs, which is 3.7 pounds lighter than the stock OEM crank pulley. This reduction is weight from the crankshaft is equal to removing more than 100 lbs of vehicle weight! Throttle response, horsepower, and torque are all increased with this easy-to-install part.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e\u003cbr\u003ePrecision machined grooves, tightly sync with all OEM and aftermarket belts. The PERRIN Lightweight Crank Pulley fits great on all 1993 or newer Subaru engines, the rear belt keeper for AC cars is minimized to make installation on 2008+ Subarus easier!\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConstructions\u003c\/strong\u003e\u003cbr\u003eThe PERRIN Crank Pulley is machined from 6061 T6 billet aluminum, anodized black and laser etched for increase belt life and precision fit.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Performance\u003c\/strong\u003e\u003cbr\u003eBy removing the air conditioning belt drive, they have made a specialized version on their crank pulley for this building engines for the highest levels of horsepower \u0026amp; torque.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNo Tuning Required\u003c\/strong\u003e\u003cbr\u003eIncrease horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.\u003c\/p\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":48062486479066,"sku":"PERPSP-ENG-100BK","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/apish1flp__03479.1633558736.386.513__16996.1695750670.1280.1280.jpg?v=1781530315"},{"product_id":"ati-super-damper-crank-pulley-for-subaru-ej20-ej25-engines-1","title":"ATI Super Damper Crank Pulley For Subaru EJ20 \u0026 EJ25 Engines","description":"\u003cp\u003eATI's Super Damper for Subaru EJ20, EJ22 and EJ25 engines - Part # 917991. Unlike undampened underdrive pulleys, which offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations at all RPM levels. The ATI Super Damper comes with laser-etched timing marks and is a direct replacement for the OEM unit. The ATI Super Damper is a critical component for all high performance cars to help protect against engine harmonics and features four-groove and five-groove serpentine belt drives on the outer shell to utilize the factory serpentine belt set-up. All ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e EJ\u003cbr\u003e\u003cstrong\u003eO.D.:\u003c\/strong\u003e 5.5\"\u003cbr\u003e\u003cstrong\u003eRibs:\u003c\/strong\u003e 5 \u0026amp; 4\u003c\/p\u003e","brand":"ATI","offers":[{"title":"Default Title","offer_id":48062543036634,"sku":"APPATI917991","price":358.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/7ddbd5fb705f8e2f8db4bae703164fe2__45118.1753712514.1280.1280.jpg?v=1781530608"},{"product_id":"subaru-engine-crankshaft-pulley-bolt-for-2015-21-wrx-13-20-brz","title":"Subaru Engine Crankshaft Pulley Bolt for 2015-21 WRX, 13-20 BRZ","description":"\u003cp\u003eSubaru Engine Crankshaft Pulley Bolt for 2015-21 WRX, 13-20 BRZ\u003c\/p\u003e","brand":"Subaru","offers":[{"title":"Default Title","offer_id":48062555554010,"sku":"12369AA091","price":8.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/12369AA091-01__58582.1723036963.1280.1280.jpg?v=1781530663"},{"product_id":"gfb-lightweight-crank-pulley-for-13-20-subaru-brz-toyota-86-scion-fr-s-2220","title":"GFB Lightweight Crank Pulley For 13-20 Subaru BRZ\/Toyota 86\/Scion FR-S - 2220","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003eLike all GFB lightweight pulleys, this Go Fast Bits 3 Lightweight Pulley for your Scion FR-S \/ Subaru BRZ begins life as a single 6061 T6 aluminum alloy billet, and is then precision CNC machined to exacting tolerances. GFB then anodizes it black for a stealthy appearance and superior wear resistance.\u003cbr\u003e\u003cbr\u003eThis results in a large saving of 4.14 lbs. of rotating mass over the factory pulley, without sacrificing strength or reliability. Like all GFB lightweight pulleys, you can feel the improvements:\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSharper throttle response.\u003c\/li\u003e\n\u003cli\u003eCrisper acceleration through each gear.\u003c\/li\u003e\n\u003cli\u003eRetains the use of OE.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Go Fast Bits","offers":[{"title":"Default Title","offer_id":48062555881690,"sku":"ds_GFVM_2220","price":180.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/8623\/0234\/files\/2220__56770.1725369361.1280.1280.jpg?v=1781530675"},{"product_id":"gfb-3-pc-underdrive-non-underdrive-pulley-kit-for-subaru-08-14-wrx-sti-09-13-forester-xt-2014","title":"GFB 3 pc Underdrive\/Non-Underdrive Pulley Kit For Subaru 08-14 WRX \/ STI\/ 09-13 Forester XT - 2014","description":"\u003ch2 style=\"text-align:center;\"\u003eOVERVIEW\u003c\/h2\u003e\u003chr style=\"border:none;border-top:1px solid #e0e0e0;margin:24px 0;\"\u003e\u003cp\u003eGFB lightweight pulley kits are made from aircraft-grade 6061-T6 aluminium and offer faster acceleration through significant weight reduction on the crankshaft. The effect is similar to a lighter flywheel, and the car feels more lively and willing to rev.\u003cbr\u003e\u003cbr\u003eMost of their kits are underdriven, which means the accessories are driven slightly slower to reduce parasitic losses. It should be noted that their underdrive pulley kits do NOT adversely affect the operation of the accessories. 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ADD LIGHTNESS, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. 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