The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1991-1993 | Yamaha | WR250 | Base |
| 1991-1992 | Yamaha | YZ250 | Base |
