FMF Racing Yamaha YZ125 2005-21/YZ125X 2020-22 Factory Fatty Pipe

Hand-pounded seams for superior flow, lighter gauge metal for the Factory sound. Hand pounded seams for smooth flow transitions 19-gauge steel on the header position Lighter 20-gauge steel on...

The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout. Increases throttle response and enhances over-rev ...

The most copied pipe in the world and #1 best seller for FMF, the Fatty broadens the powerband and provides significant increases throughout. Increases throttle response and enhances over-rev ...

The FMF Rev Pipe focuses on power delivery in the middle and upper RPMs of the powerband. If you're short on power up top, want more time between shifts and spend your time in deep berms or sand, the...

The most popular 2-Stroke silencer in the FMF arsenal. Balances power enhancements into a lightweight extruded aluminum oval canister design. Equipped with a "Performance Flow" end cap and...