Big Bore + Air Extreme Engine / Pro r Category_Default Category/SLED/Polaris/AXYS 850/ Exhausts Whether you want to maximize

Whether you want to maximize the high-revving mid-range torque of the 9R or the top-end speed of the 850

Since the exhaust valves open at such a high rpm on the carbureted models the mid-range power is sacrificed dramatically compared to the EFI models

Provides you the tools for most trail-side repairs

Speed2 270 cfm

Big Bore + Air Extreme Engine / Pro r Category_Default Category/SLED/Polaris/AXYS 850/ Exhausts Whether you want to maximizeThe Bikeman Performance Crate Engine provides the ultimate performance and reliability for your Pro R RZR. This 2. 15L Naturally Aspirated engine offers a smooth idle and daily drivable manners. When you are ready to roll into the throttle, the engine is full of low end punch and comes to life in the high RPM's. The high flow CNC cylinder head and high lift camshaft allow this engine to accelerate its 360hp aggressively to 9000 rpm. Lean into the