Cardinals Racing Cylinder Head Kit (23In/21Ex) - Yamaha R15
The Cardinals Racing cylinder head kit has larger valves for better intake and exhaust air flow over the factory cylinder heads, allowing higher intake and exhaust gas flow higher to your engine. Comes with matching valves, valve springs, roller rocker arms and a matching performance camshaft.
This performance cylinder head is suitable for riders who want a little more power from their engine without hurting their wallets. Recommended if you already have a big bore kit or plan to upgrade to one. Ports are stock diameter. We recommend you to further widen and polish the Intake and Exhaust ports for better serious performance!
- Camshaft Lift: In/5.8mm Ex/5.7mm
- Intake and exhaust valves (23IN/21EX)