{"product_id":"racing-valve-spring-kit-6","title":"Racing Valve Spring Kit","description":"KPMI® valve springs are wound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI® valve springs are heat-treated, stress relieved, and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass, and operating rpm.\u003cbr\u003eFeatures:\u003cul\u003e\n\u003cli\u003e80 Lbs of Seat Pressure \/ 205 Lbs @ 0.435\" Lift (Max)\u003c\/li\u003e\n\u003cli\u003eSpring kit is designed for compatibility with the OEM integrated Seal\/Base (OE# 3610212) where applicable\u003c\/li\u003e\n\u003cli\u003eLightweight heat treated Steel Retainer and Beehive Spring reduce reciprocating mass while providing the spring forces required by high performance boosted racing applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2001 Yamaha YFM660R Raptor\u003cbr\u003e\n2002 Yamaha YFM660FG Grizzly 4WD [IRS]\u003cbr\u003e\n2002 Yamaha YFM660R Raptor\u003cbr\u003e\n2003 Yamaha YFM660FG Grizzly 4WD [IRS]\u003cbr\u003e\n2003 Yamaha YFM660R Raptor\u003cbr\u003e\n2004 Yamaha YFM660FG Grizzly 4WD [IRS]\u003cbr\u003e\n2004 Yamaha YFM660R Raptor\u003cbr\u003e\n2004 Yamaha YXR660F Rhino 660\u003cbr\u003e\n2005 Yamaha YFM660FG Grizzly 4WD [IRS]\u003cbr\u003e\n2005 Yamaha YFM660R Raptor\u003cbr\u003e\n2005 Yamaha YXR660F Rhino 660\u003cbr\u003e\n2006 Yamaha YFM660FG Grizzly 4WD [IRS]\u003cbr\u003e\n2006 Yamaha YXR660F Rhino 660\u003cbr\u003e\n2007 Yamaha YFM660FG Grizzly 4WD [IRS]\u003cbr\u003e\n2007 Yamaha YXR660F Rhino 660\u003cbr\u003e\n2008 Yamaha YFM660FG Grizzly 4WD [IRS]","brand":"KPMI","offers":[{"title":"Default Title","offer_id":55944703082664,"sku":"80-80030","price":357.95,"currency_code":"CAD","in_stock":false}],"url":"https:\/\/speedguyscanada.com\/products\/racing-valve-spring-kit-6","provider":"THE SPEED GUYS CANADA ","version":"1.0","type":"link"}