Our billet head kits utilize an improved squish band

As soon as you do

You can adjust the opening RPM by changing different thrust springs

Polaris RS1

The stock XP800 muffler weighs just shy of 16 lbs

Oil Sleeve Category_Default Category/SLED/Yamaha/Sidewinder Our billet head kits utilizeThe Oil Sleeve is designed to stop oil from leaking out of the oil cap due to a warped reservoir neck. The Oil Sleeve installs easily into place. Slight heating of the reservoir neck with a heat gun may be required to install the Oil Sleeve. Fits: Ski Doo XP, Rev, ZX, CK, F and S chassis; Arctic Cat Crossfire, M Series and Sno Pro Chassis; Polaris Edge, IQ, RMK, SKS, Switchback, Rush, Indy, Fusion, Evolved and Aggressive Chassis. DOES NOT FIT: MATRYX