EPI Pro-Series Clutch Kit Fits Polaris - N/ADelivers bolt on performance for aggressive riders who like to be in front of the pack Aggressive acceleration that reaches top speed more quickly Delivers tremendous low end and mid range performance increases Exceptional back shifting delivers stronger out of the corner pull Keeps engine operating at correct RPM to keep power on tap when you need it Use of traction products highly recommended with this product Kits designed for stock sled with stock