FMF Factory 4.1 Exhaust System | 044447 tire Clavicle shell relief zone creates

Clavicle shell relief zone creates a soft zone filled with EPS and EPP to aid in reducing clavicle injuries

Lower bowl protection & ribbed design for more strength

Completely rebuild able

Yamaha YZ250FX (2019-2022)

FMF Factory 4.1 Exhaust System | 044447 tire Clavicle shell relief zone createsAll new incorporating the latest in Resonance Chamber Technology Patented core shape lowers sound level while maintaining maximum power output Patented canister shape increases internal volume for more sound absorbing material Patented chamber design to enhance and refine exhaust pressure Factory Forward Engineering centralizes mass and is less prone to crash damage Tuned exhaust with optimized core specifications for each application Innovative rear