Hot Cams Racing Camshaft Exhaust - Yamaha YZ450F/X

Exhaust. Slight bottom end gain to 4,800 RPM and good gains from 6,500 RPM to redline. Designed with Improved Throttle Response (ITR) technology. Uses stock valve springs. Dual-cam engine. Intake and exhaust cams sold separately. Supplied with decompression mechanism. | Exhaust Lift: 10.16 mm | Exhaust Duration (@ 1 MM): 260.39

• Stage 2 is designed for mid to top end gains
• 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.
• CNC machined from 8620 billet, case-hardened steel for an exact fit and lobe profile
• Adds a 5%-10% power gain
• Engineered to be drop-in cams, that use stock valve springs (unless otherwise noted).
• Designed and dyno proven in the USA
• Manufactured by utilizing state of the art valvetrain software
• For dual cam engine.