Exhaust

More tractable power, improved throttle control Carbon steel with a nickel plated finish for maximum durability O-rings Included. EXHAUST FATTY PIPE YZ125

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

With well over 35 years of racing experience behind it, the Fatty Gold Series pipe delivers race proven performance The Fatty broadens and smooths out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

Pipe focuses its power delivery in the middle and upper RPM of the power band If you're running out of power up top, want more time between shifts and do a lot of deep berm or sand riding, the FMF Rev is your pipe of choice FMF Racing's Tru-Flo stamping...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...

The Factory Fatty is reminiscent of the ôworksö or cone pipe once used by Factory Teams and it shares many of the same characteristics with its craftsmanship and material quality Broadens and smooths out the power curve while boosting gains throughout...