Big Bore + Air Extreme Engine / Pro r Category_Default Category/SLED/Polaris/AXYS 850/ Exhausts Since the exhaust valves open

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

IQ800-41 is our lower 11

Speed2 270 cfm

Designed with accessible air bleed valve for easy coolant installation

Big Bore + Air Extreme Engine / Pro r Category_Default Category/SLED/Polaris/AXYS 850/ Exhausts Since the exhaust valves openThe 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