Yoshimura RS-4 Full System Exhaust

 FULL SYSTEM EXHUAST (INCLUDES HEADER PIPE)The goal - improve power in every area we could while keeping the goal making the new 450X easier to ride in a variety of off-road conditions. We tailored the power delivery to give the machine more usable rideability. Power is up and weight is down for a win-win situation for the new red off-road machine. Benefits for the CRF450X (fits CRF450L) Yoshimura RS-4 system include: Significant power gains with Slip-on Big time weight savings over the stock muffler! A USFS spark arrestor is included Proudly made in the USA!