FMF Factory 4.1 Exhaust System | 045639 nodiscount 2 shell sizes

2 shell sizes

Save time on travelling to the dealer and back (and spend it riding instead

-Lightweight Billet CNC Machined

2003 - YFM400 Big Bear 2WD [SRA]

FMF Factory 4.1 Exhaust System | 045639 nodiscount 2 shell sizesAll 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