Fatt Azz Pipe / SD 850 NA Category_Default Category/SLED/Arctic Cat/CFR\/M 700 BMP Custom Primary Spring

BMP Custom Primary Spring

longer cylinder bolts

This does not pertain to vehicles already exempted and labeled as competition-only vehicles from the factory

***PLEASE NOTE*** These cams require re-shimming of your valves as the base circle is cut down to achieve more lift

Extreme Tunability (93g to 157g): Effortlessly adjust your machine's setup for varying altitudes

Fatt Azz Pipe / SD 850 NA Category_Default Category/SLED/Arctic Cat/CFR\/M 700 BMP Custom Primary SpringThe industry's first changeable internal stinger for Ski Doo allows for adjustments for high low altitude or race application adjustments. Smaller stinger size will increase the pipe pressure and compensate for low pressure at high elevation. In race applications a smaller stinger will cause pipe to react much quicker and require less preheating of the pipe on a rev stand. Pipe comes with 2" stinger designed for sea level elevation. For mid to high