Big Gun 09-10 Honda CRF 450R EVO R Series Head Pipe fits_2025`BMW`M4`CS~2023`BMW`M4`CSL This cat-back exhaust system incorporates

This cat-back exhaust system incorporates factory style exhaust valves which use the factory exhaust valve motors (not included)

The Track Edition Exhaust takes the engineered design of the Touring Edition Exhaust and replaces the AWE 180 Technology® resonators with straight pipe sections

This system was developed first on a PDK car

Constructed out of mandrel bent stainless steel tubing and a high flow muffler

The BD Brakes rugged cast-iron housing incorporates BDs exclusive AlumiBronze bushing and positive sealing piston ring

Big Gun 09-10 Honda CRF 450R EVO R Series Head Pipe fits_2025`BMW`M4`CS~2023`BMW`M4`CSL This cat-back exhaust system incorporatesThe EVO R series draws on our rich heritage of making power. Offered for various off road MX and sport ATV models, the EVO R is a tried and true series that will save weight, add noticeable performance gains and sound tremendously better than stock.