STM Rage 3P Primary Clutch Category_Default Category/SLED/Polaris/Pro-R 600/Exhaust We highly recommend head studs

We highly recommend head studs when going with a big bore kit

Consistent Peak RPM: Precision-machined shift curve maintains target RPM under heavy snow loads

1 Hiflofiltro Filter HF-198

Base Gasket and Head Gasket

STM Rage 3P Primary Clutch Category_Default Category/SLED/Polaris/Pro-R 600/Exhaust We highly recommend head studsRage 3P Primary Clutch: Unleash Your Machine's Performance The Rage 3P primary clutch, paired with the STM driven clutch, is designed to deliver optimal performance. Made from billet aluminum, this clutch is a durable, high performance replacement for your stock primary clutch. Key Features Improved Low Speed Engagement: The Rage 3P provides extremely smooth engagement at low speeds, with improved torque. This makes big tires and low speed riding much