Hot Cams Racing Exhaust Camshaft Stage 3 Yamaha Yfz450 Elevate your ride's performance with the Hot Cams Stage 3 Racing Exhaust Camshaft. Engineered for a straightforward installation without needing a core, it seamlessly works with existing stock valve springs and rockers. With model-specific adjustable cam sprockets, this camshaft allows precise timing adjustments, improving combustion cycles for enhanced throttle response and significant power gains over the standard setup. Features: Improves Top End over Stage 2 Mid-range gain over Stage 2 High performance racing camshaft No core required Designed to be use with stock valve springs and rockers on most applications (unless noted) Adjustable cam sprockets supplied (model specific) Improved throttle response technology Specifications: Exhaust Cam Lobe Center: 97.250 Exhaust Cam Lobe Duration at 1mm: 254 Exhaust Cam Lobe Lift: 8.690mm Exhaust Cam Valve Lash: 0.200mm Shim Kit: Hcshim02