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• Features lightweight stainless steel and aluminum construction
• Designed to increase horsepower and torque
• Bolts directly to the stock headpipe
• Uses a U.S.F.S. certified spark arrestor.
• DG offers 4 different Quiet Core Inserts to reduce exhaust sound.
• Lightweight at approximately 5.5 lb.

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.