FMF Factory 4.1 Exhaust System | 044447 tire The only slider on the

The only slider on the market that is oil impregnated for virtually zero friction and surface drag

baffles and proprietary multistage packing material making it the best performing quiet muffler available

wicking material and are flatlock stitched for additional comfort

Orange Available - Ships in 2-3 Days Black Available - Ships in 2-3 Days For over thirty years

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

FMF Factory 4.1 Exhaust System | 044447 tire The only slider on theAll 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