{"product_id":"hks-pulley-8rib-100mm","title":"HKS PULLEY 8Rib-100mm","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e12999-AK005\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 4957266620991\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eHKS PULLEY 8Rib-100mm for 2008-2021 Subaru WRX STI\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThis HKS 8-rib 100mm idler pulley fits 2008-2021 Subaru Impreza WRX STI models equipped with HKS GT2 supercharger kits. It maintains proper belt tension for smooth operation under high boost. Lightweight construction cuts rotational mass to support faster supercharger spool and consistent power delivery.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-Rib Design:\u003c\/strong\u003e Matches high-torque 8-rib belts to prevent slippage in 500+ whp setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100mm Diameter:\u003c\/strong\u003e Sized for HKS GT2 superchargers to balance RPM and belt wrap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Build:\u003c\/strong\u003e Weighs only 430g to lower inertia and improve throttle response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodized Finish:\u003c\/strong\u003e Resists wear corrosion and heat for extended track use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt-On Fit:\u003c\/strong\u003e Direct replacement using existing HKS tensioner hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires HKS GT2 Supercharger Kit Type-R for compatibility\u003c\/li\u003e\n\u003cli\u003eInspect belt condition during replacement to avoid premature wear\u003c\/li\u003e\n\u003cli\u003ePackages in foam-protected box measuring 5in x 5in x 2in\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eRemove supercharger belt and loosen tensioner arm before swap\u003c\/li\u003e\n\u003cli\u003eUses stock HKS mounting bolts no additional hardware needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2014\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX STI\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2014\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX STI\u003c\/td\u003e\n\u003ctd\u003eHatchback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2014\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX STI\u003c\/td\u003e\n\u003ctd\u003eSedan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eHatchback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eSedan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose HKS?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMotorsport heritage from Japanese rally and drift programs\u003c\/li\u003e\n\u003cli\u003eCNC-machined parts for exact tolerances and balance\u003c\/li\u003e\n\u003cli\u003eProven reliability in 1000hp supercharged builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this pulley fit my 2015 STI with HKS supercharger?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes it bolts directly to 2008-2021 STI GT2 kits no modifications required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is the pulley made from?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e 6061 aluminum alloy with black anodized coating for heat and friction resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty on this part?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Backed by HKS one-year limited warranty against defects covers manufacturing issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure foam-lined box 5 x 5 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.1 lbs shipping weight\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":43805362520143,"sku":"HKS12999-AK005","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/hks-pulley-8rib-100mm-hks.jpg?v=1767419599","url":"https:\/\/www.blackopsautoworks.com\/products\/hks-pulley-8rib-100mm","provider":"Black Ops Auto Works","version":"1.0","type":"link"}