Yamaha YZ250X 2016 - 2025 FMF Factory Fatty Exhaust Pipe Expansion Chamber Raw

FMF Factory Fatty Exhaust Pipe Expansion Chamber Raw

The Factory Fatty is reminiscent of the works or cone pipe once used by Factory Teams. It shares many of the same characteristics with its craftsmanship and material quality. The Factory Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you're looking for.

- Lighter 20 gauge steel used for the body of the pipe.
- 19 Gauge steel used for the header portion.
- Includes O-rings on most models
- Hand pounded seams for smooth flow transitions.
- O-Rings Included

Fitment Details

• Yamaha YZ250X 2016
• Yamaha YZ250X 2017
• Yamaha YZ250X 2018
• Yamaha YZ250X 2019
• Yamaha YZ250X 2020
• Yamaha YZ250X 2021
• Yamaha YZ250X 2022
• Yamaha YZ250X 2023
• Yamaha YZ250X 2024
• Yamaha YZ250X 2025