The FMF Powercore 4 Muffler is a performance-focused exhaust component designed for select Yamaha off-road motorcycles. Manufacturer part number 044228 and vendor part number 79-3088 identify this stainless steel muffler assembly, which is engineered to support efficient exhaust flow and improved engine performance. Its lightweight alloy canister helps reduce unnecessary weight while providing durable service in demanding riding conditions.
Inside, the FMF Powercore 4 uses space-age internal packing designed for extended packing life. The Hi-Flo modular end cap and Hi-Flo core shape work together to improve exhaust evacuation, helping increase flow and support stronger power delivery. A removable spark arrestor is included, making the muffler suitable for applicable off-road riding environments where spark-arrestor equipment is required. Installation should follow the motorcycle manufacturer’s service procedures and FMF recommendations.
This FMF Powercore 4 Muffler fits 2006, 2007, 2008, and 2009 Yamaha YZ250F models; 2006, 2007, 2008, and 2009 Yamaha YZ450F models; and 2007 and 2008 Yamaha WR250F models. Verify the motorcycle model year and existing exhaust configuration before ordering to ensure proper fitment. The brand is FMF, the manufacturer is FMF Racing, the manufacturer part number is 044228, and the vendor part number is 79-3088.
Features:
- Construction: Stainless steel muffler with a lightweight alloy canister for durability and reduced weight
- Internal Packing: Space-age packing material designed for extended packing life
- End Cap: Hi-Flo modular end cap supports efficient exhaust flow
- Core Design: Hi-Flo internal core shape promotes improved exhaust evacuation
- Performance: Enhanced sonic evacuation helps increase flow and support added engine power
- Spark Arrestor: Includes a removable spark arrestor for applicable off-road use
- Fitment: Fits 2006–2009 Yamaha YZ250F and YZ450F models, plus 2007–2008 Yamaha WR250F models
- Identification: FMF manufacturer part number 044228 and vendor part number 79-3088
Fitment:
2006 Yamaha YZ250F
2006 Yamaha YZ450F
2007 Yamaha WR250F
2007 Yamaha WR450F
2007 Yamaha YZ250F
2007 Yamaha YZ450F
2008 Yamaha WR250F
2008 Yamaha WR450F
2008 Yamaha YZ250F
2008 Yamaha YZ450F
2009 Yamaha WR250F
2009 Yamaha WR450F
2009 Yamaha YZ250F
2009 Yamaha YZ450F
2010 Yamaha WR250F
2010 Yamaha WR450F
2011 Yamaha WR250F
2011 Yamaha WR450F
2012 Yamaha WR250F
2013 Yamaha WR250F