FMF's Factory 4.1 RCT SL slip-on muffler incorporates the latest in RCT (Resonance Chamber Technology) both internally and externally. The core's shape lowers decibels without compromising power output. In addition, FMF designed the muffler specifically to achieve a shorter overall length so as to be less susceptible to crash damage. Complementary to FMF's Factory Forward Engineering, the muffler is also moved closer to the motor to centralize mass and improve handling. Each FMF Factory 4.1 RCT slip-on muffler is constructed from only aerospace grade materials that meet the California company's exacting specifications.
Dual-muffler configuration, just like the stock CRF exhaust layout
Huge weight savings when compared to the stock muffler
Fabricated using the highest quality proprietary blend of alloy grade materials
FMF RTS (Rapid Tuning System) makes for easy exhaust insert changes
Includes USFS-approved spark arrestor and 94 dB sound insert
Fits OEM or FMF headers
Comes with all required mounting hardware and easy-to-follow installation instructions
Fitment is guaranteed or your money back plus free return
Don't waste time installing a product that doesn't fit. We
worked hard ensuring that this product is an exact fit on the
vehicles listed below.
CRF250R 4-Stroke 2014-2017
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