The FMF Fatty 020127 pipe for Yamaha WR250 1989 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an experienced...

The FMF Fatty 020135 pipe for Yamaha WR250 1991-1993 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...

The FMF Fatty 020137 pipe for Yamaha WR250 1994-1997 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...

The FMF Fatty 020150 pipe for Yamaha YZ125 1999 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an experienced...

The FMF Fatty 024049 pipe for Yamaha YZ125 2005-2021 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...

The FMF Fatty 024049 pipe for Yamaha YZ125X 2020-2022 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...

The FMF Fatty 024076 pipe for Yamaha YZ125X 2023-2024 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...

The FMF Fatty 020127 pipe for Yamaha YZ250 1989 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an experienced...

The FMF Fatty 020135 pipe for Yamaha YZ250 1991-1992 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...

The FMF Fatty 020142 pipe for Yamaha YZ250 1995-1996 offers race-proven performance, broadening and smoothing the power curve to increase gains throughout the power band. Whether you're an...