{"product_id":"gfb-08-wrx-sti-09-forester-03-09-lgt-3-pc-underdrive-non-underdrive-pulley-kit","title":"GFB 08+ WRX\/STi \/ 09+ Forester \/ 03-09 LGT 3 pc Underdrive\/Non-Underdrive Pulley Kit - 2014","description":"\u003cp\u003e3-piece underdrive pulley kit (Crank, alternator \u0026amp; power steering pulleys Subaru Suits WRX\/STi MY08-14, Liberty GT MY03-12, Forester XT MY09-12)\u003c\/p\u003e\n\u003ch3\u003eWhy?\u003c\/h3\u003e\n\u003cp\u003eGo Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet of 6061-T6 aluminium, then precision CNC machined to exacting tolerances, our pulley kits offer an exceptional bolt-on performance advantage without the need for supporting mods or tuning\u003c\/p\u003e\n\u003cp\u003eIn some vehicle applications additional performance benefits are available at high RPM by underdriving the accessories (slowing them down), which reduces the parasitic load on the engine. All underdriven kits are thoroughly tested to ensure that the benefit comes without compromising the accessory performance\u003c\/p\u003e\n\u003cp\u003eIt might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM in a second or two saps a measurable amount of torque. GFB Lightweight Pulleys reduce inertia by up to 85%, so most of the torque that used to accelerate the pulley can now be applied to the wheels.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSharper Throttle Response and “urge”\u003c\/li\u003e\n  \u003cli\u003eengine feels more lively and willing to rev\u003c\/li\u003e\n  \u003cli\u003eup to 85% rotating inertia reduction\u003c\/li\u003e\n  \u003cli\u003ewill not cause engine damage\u003c\/li\u003e\n  \u003cli\u003eno negative effects on driven accessory performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e3-piece underdrive pulley kit (Crank, alternator \u0026amp; power steering pulleys \u0026amp; required bel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited lifetime\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProudly Australian.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Go Fast Bits","offers":[{"title":"Default Title","offer_id":46996245643558,"sku":"GFB2014","price":342.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/9690\/4998\/products\/15f48633a668e1d31c0a25ba7491253c.jpg?v=1697748559","url":"https:\/\/www.raptorracing.com\/products\/gfb-08-wrx-sti-09-forester-03-09-lgt-3-pc-underdrive-non-underdrive-pulley-kit","provider":"Raptor Racing","version":"1.0","type":"link"}