Features: Incorporates FMF Resonance Chamber Technology™ both internally and externally. Shorter overall length that is less susceptible to crash damage and complementary to Factory Forward Engineering, moving the muffler closer to the motor to centralize mass. Constructed from only aerospace grade materials that meet exacting specifications and is manufactured 100% at the southern California factory. Spark arrestor screen insert included. 94dB insert included. For closed course competition only. NOTE: Will not pass 2025 FIM sound regulation.
The FMF Factory 4.1 RCT Titanium Exhaust System For Yamaha WRF450 would be best suited for riders seeking a premium, high-performance exhaust system with excellent sound and durability, made to fit a specific 2024 Yamaha WRF450 motorcycle.