The RS-4 Race Series slip-on gives the CRF250L more power and torque, the RS-4 provides more punch at bottom end without sacrificing the mid and top power. The slip-on also removes a good amount of weight from the stock unit. Those that love the Yoshimura RS-4 sound will love the way it makes the CRF250L Rally sing!
Proudly made in the USA!
- Pentagonal-shaped sleeve
- Front muffler cap functions as a polyresonant chamber which helps reduce noise
- Two-stage stepped baffle
- Turn-out carbon fiber end-cap
- Stainless steel tail-pipe
- RS-4 stainless slip-on weight 7.8lbs vs Stock muffler weight 10.3lbs.