Hot Cams Camshaft - Exhaust - Stage 1 - Yamaha 4279-1E

• Stage 1 is designed for low end torque • Adds a 5%-10% power gain • Designed and dyno proven in the USA • Manufactured by utilizing state of the art valvetrain software • CNC machined from 8620 billet, case-hardened steel for an exact fit and lobe profile • Engineered to be drop-in cams, that use stock valve springs (unless otherwise noted). • Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve throttle response throughout the entire rpm range while providing excellent power gains through the mid-range and top-end. • For dual cam engine. - Yamaha YZ 450 F (2014, 2015)