DFR Stage 2 Cam built for serious HP! This cam is a direct replacement giving you much more power throughout the power band. Great additive for built race motors, turbo €™s, and high compression pistons. for the first time ever DFR has got the perfect grind lift and duration for the RZR. We have our own specific grind on this cam to compliment the CVT style clutching used in RZR's. No cutting, welding, and best of all NO CORE CHARGE!