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 |
|---|---|---|---|
| 1999-2026 | Yamaha | YZ250 | Base |
| 2024 | Yamaha | YZ250 50th Anniversary Edition | Base |
| 2026 | Yamaha | YZ250 70th Anniversary Edition | Base |
| 2022-2023,2025 | Yamaha | YZ250 Monster Energy Yamaha Racing Edition | Base |
| 2001-2026 | Yamaha | YZ250F | Base |
| 2024 | Yamaha | YZ250F 50th Anniversary Edition | Base |
| 2026 | Yamaha | YZ250F 70th Anniversary Edition | Base |
| 2021-2023,2025 | Yamaha | YZ250F Monster Energy Yamaha Racing Edition | Base |
| 2015-2026 | Yamaha | YZ250FX | Base |
| 2016-2026 | Yamaha | YZ250X | Base |
