These GYTR performance cams are designed to maximize horsepower and torque in the mid-range and top-end without sacrificing any low-end power. Manufactured to exact specifications using special cam-grinding CNC machines. Special 100% billet alloy construction provides consistent maching surfaces for increased durability. Cams feature stock cam gears and auto de-comp for unmatched durability. Ready to go - no hassling with costly core charges, deposits, or exchange programs.Fits '09 YFZ450RNote: All YFZ450R models are regulated by the EPA. Because this accessory affects emissions, using it constitutes illegal tampering punishable by law unless the vehicle is only used in closed-course competition.
