Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The COMP Cams XR277HR street/strip cam is designed for use with FAST LSX intake systems and targets high-RPM power. Installation requires a programmer to adjust engine controls to the cam’s characteristics. It’s intended for enthusiasts combining intake and cam upgrades to unlock broader top-end performance, and should be paired with appropriate tuning and supporting modifications.
COMP Cams Camshaft LS1 XR277HR-12
