Exhaust

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 FMF Rev pipe focuses its power delivery in the middle and upper rpms Dyno and track tested for every application O-rings included. EXHAUST R-FAT PIPE YZ125

Lighter 20 gauge steel used for the body of the pipe 19 Gauge steel used for the header portion Hand pounded seams for smooth flow transitions O-rings Included. EXHAUST F-FAT PIPE YZ125

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...