Brian Crower Polaris XP1000/SPTurbo/XP900 Adjustable Cam Gears - Intake & ExhaustBrian Crower Polaris XP1000 SPTurbo XP900 Adjustable Cam Gears Intake & Exhaust Machined from hardened steel alloy and fully compatible with the stock Polaris timing chain (BC has new Cloyes timing chains also), the BC adjustable cam gears for the Polaris RZR platform are the perfect way to gain top end or low end torque depending on how you dial in the gear settings. Separate intake and exhaust gears to avoid confusion, these gears allow for 5