Camshaft - Intake - Stage 1 - Yamaha

Adds 5%-10% power gain. Designed and dyno proven in the USA. Engineered by utilizing state-of-the-art valvetrain software. CNC machined from 8620 billet, case hardened steel for an exact fit and lobe profile. 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 low end torque.. Made to be drop-in cams that use stock valve springs (unless noted)..