Correct back pressure is crucial to how the motor works

900 Models: 120+hp when combined with the 935cc big bore (+45hp)

On higher duration cams it is common to need to give a little throttle to start the vehicle this is completely normal

Wossner Pistons is Germany's finest aftermarket forged piston and rod manufacture and has over 25 years of experience in the high performance racing industry

and 8-10 hp if you have an aftermarket exhaust system

Base Gasket / Ranger, RZR Category_Default Category/MERCH/Headwear Correct back pressure is crucialHigh quality base gasket for Polaris Ranger 700 & 800, RZR 800's, and Sportsman 700 & 800.