Description
FMF Racing Yamaha WR250F 2007-2013; Yamaha WR450F 2007-2011; Yamaha YZ250F / YZ450F 2006-2009 Factory4.1 SL (Slip-On) 044235
Factory 4.1 Muffler - Anodized Titanium
Features
- Superior power and performance - horsepower improved throughout the rpm range
- Factory Forward Engineering centralizes mass, improves handling
- Customize with performance tuning inserts and spark arrestor module
Specifications
| Product Name | MUFFLER |
|---|---|
| Type | SLIP-ON |
| Model | FACTORY 4.1 |
| Style | OVAL |
| Pipe Material | STAINLESS STEEL |
| Muffler Material | TITANIUM |
| Muffler Color/Finish | ANODIZED BLUE |
| End Cap Style | EURO |
| End Cap Material | STAINLESS STEEL |
| Units | EACH |
| Riding Style | OFF-ROAD / ADVENTURE TOURING / DUAL-SPORT |
Vehicle fitment
4 exact approved application ranges are shown. Select the listed part number when variants differ.
| Years | Make | Model | Required part | Position | Notes |
|---|---|---|---|---|---|
| 2007-2014 | Yamaha | WR250F | 1821-0584 | — | — |
| 2007-2011 | Yamaha | WR450F | 1821-0584 | — | — |
| 2006-2009 | Yamaha | YZ250F | 1821-0584 | — | — |
| 2006-2009 | Yamaha | YZ450F | 1821-0584 | — | — |
References
26 PU OFFROAD / Page 11
Notes and disclosures
Fitment is based on source-listed stock applications. Confirm the exact part number and installation requirements; vehicle modifications can change compatibility.