The FMF Powercore 4 Muffler is a high-flow exhaust replacement designed for select Yamaha four-stroke off-road motorcycles. Manufacturer part number 044220 and vendor part number 79-3080 identify this stainless steel muffler assembly, which is engineered to improve exhaust evacuation and support increased engine performance. Its lightweight alloy canister helps reduce unnecessary weight while maintaining durable trail and competition use.
The muffler features FMF Hi-Flo technology throughout the internal core and a modular Hi-Flo end cap to promote efficient exhaust flow. Enhanced sonic evacuation helps the engine release exhaust gases more effectively, contributing to stronger power delivery and responsive performance. Space-age internal packing is designed for extended service life, helping the muffler maintain consistent sound and performance over time.
This FMF Powercore 4 Muffler includes a removable spark arrestor for approved off-road riding applications where spark arrestor equipment is required. It fits 2003 through 2005 Yamaha YZ250F models, as well as 2003 through 2006 Yamaha WR250F models. Verify motorcycle year, model, mounting points, and local sound and spark arrestor requirements before installation.
Features:
- Construction: Stainless steel muffler body with a lightweight alloy canister
- Internal Packing: Space-age packing material designed for extended packing life
- End Cap: Hi-Flo modular end cap supports efficient exhaust flow
- Core Technology: Internal core shape uses FMF Hi-Flo technology
- Performance: Enhanced sonic evacuation promotes higher flow and increased power
- Spark Arrestor: Includes a removable spark arrestor
- Fitment: Fits 2003-2005 Yamaha YZ250F and 2003-2006 Yamaha WR250F motorcycles
- Identification: FMF manufacturer part number 044220 and vendor part number 79-3080
Fitment:
2003 Yamaha WR250F
2003 Yamaha YZ250F
2004 Yamaha WR250F
2004 Yamaha YZ250F
2005 Yamaha WR250F
2005 Yamaha YZ250F
2006 Yamaha WR250F