FMF FACTORY 4.1 RCT S/O MFLR W/ CAR CAP TI YAM YFZ450R | 044400. All new incorporating the latest in Resonance Chamber TechnologyPatented core shape lowers sound level while maintaining maximum power outputPatented canister shape increases internal volume for more sound absorbing materialPatented chamber design to enhance and refine exhaust pressureFactory Forward Engineering centralizes mass and is less prone to crash damageTuned exhaust with optimized core specifications- FMF FACTORY 4.1 RCT S/O MFLR W/ CAR CAP TI YAM YFZ450R | 044400.
FMF Megabomb Titanium Header YFZ450R 09-22 & YFZ 450X 10-11 | 044358. The science behind the Megabomb header may be our greatest engineering accomplishment to date. You can pay an engine builder thousands or bolt on a Megabomb for as much as a 3hp boost! Plus, the megabomb actually reduces noise levels by as... - FMF Megabomb Titanium Header YFZ450R 09-22 & YFZ 450X 10-11 | 044358.
FMF Factory 4.1 End Caps | 040642. A Now offering complete end cap rebuild kits. Whether it be for a Powercore 4, Q4, Factory 4.1 or the new RCT we have you handled. The kit includes Stainless Steel, Titanium, or Carbon Fiber (RCT Only) end cap, 3/16 stai... - FMF Factory 4.1 End Caps | 040642.
FMF Factory 4.1 SL 4-Stroke Silencer For Yamaha | 044206. The Factory 4.1 is FMF Racing's premier ATV performance exhaust. It is guaranteed to produce more horsepower throughout the entire RPM range. If performance is your priority, the Factory 4.1 is the exhaust for you.Titanium construction with dur... - FMF Factory 4.1 SL 4-Stroke Silencer For Yamaha | 044206.
FMF Factory 4.1 SL 4-Stroke Silencer For Yamaha | 044211. The Factory 4.1 is FMF Racing's premier ATV performance exhaust. It is guaranteed to produce more horsepower throughout the entire RPM range. If performance is your priority, the Factory 4.1 is the exhaust for you.Titanium construction with dur... - FMF Factory 4.1 SL 4-Stroke Silencer For Yamaha | 044211.