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 machined 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 '10 YFZ450X and '09~'10 YFZ450R models

Through extensive development, with flow bench, dyno, and track testing, Yamaha has achieved upgraded power from their GYTR ported cylinder head. Once they pimproved the head flow characteristics, they meticulously digitized the ports to obtain the precise dimensions needed for CNC machining, Unlike flow variations inherent in hand porting, CNC porting lets us accurately reproduce this maximized flow design with every cylinder head manufactured. Cylinder head comes as a ready-to-install assembly, with valve train and GYTR Performance Camshafts pre-assembled. Can be used with stock or GYTR performance piston. (GYT-5D305-00-00), sold separately.