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 |
|---|---|---|---|
| 1989 | Yamaha | YZ250 | Base |
| 1989 | Yamaha | YZ250WR | Base |
