We have been testing various clutch weight designs for months and have settled on what we believe is the best profile to get the power to the ground and keep the rpms under control. The EVOPS RZR XP TURBO kit consists of 3 custom ground adjustable weights, primary spring and a secondary spring shim. These weights are super aggressive. The spring shim helps to optimize upshift and backshift. We have setups for Stages 1-5. Stages 6 and 7 are in testing.