FMF Aluminum Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap 2018-2022 Yamaha YZ450F
FMF Aluminum Factory 4.1 RCT (Slip-On) Carbon Fiber Rear End Cap
Fitment - 2018-2022 Yamaha YZ450F / 2019-2021 Yamaha YZ450FX / 2019 Yamaha WR450F
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.
- RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
- Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
- FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
- Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
- Compatible with stock header or FMF header
- Meet AMA and FIM sound requirements
- Quiet Core 94db insert included
- Spark arrestor included in muffler
- Made in the U.S.A.
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: 94dB Insert (included)
- Weight: 5 lbs.
To see more YZ450F performance products check out Yamaha YZ450F Performance Section
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