FMF Factory 4.1 Exhaust System | 042380 gutslogo Self-lubricating Delrin bushings at each

Self-lubricating Delrin bushings at each end of tube eliminate aluminum-to-aluminum contact and provide an ultra-smooth feel

NITROLUBE Cooling Gel

Does not fit the OEM Kawasaki throttle

Upgrade your arsenal with the power of FMF vision engineered by the most trusted off-road goggle brand

FMF Factory 4.1 Exhaust System | 042380 gutslogo Self-lubricating Delrin bushings at eachAll 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