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.
Fitment:
2014 Yamaha YZ250F Base
2015 Yamaha WR250F Base
2015 Yamaha YZ250F Base
2015 Yamaha YZ250FX Base
2016 Yamaha WR250F Base
2016 Yamaha YZ250F Base
2016 Yamaha YZ250FX Base
2017 Yamaha WR250F Base
2017 Yamaha YZ250F Base
2017 Yamaha YZ250FX Base
2018 Yamaha WR250F Base
2018 Yamaha YZ250F Base
2018 Yamaha YZ250FX Base
2019 Yamaha WR250F Base
2019 Yamaha YZ250FX Base
- air_freight_prohibited:
- false
- not_carb_approved:
- false
- ltl_freight_required:
- false
- prop_65:
- Unknown
- part_type:
- powersports
- epa:
- Compliant
- carb_acknowledgement_required:
- false
- regular_stock:
- t