300RR (2013–2019). 250RR (2013-2019). The Factory Fatty 025157 exhaust is designed for riders seeking a blend. Constructed from lightweight 20 gauge steel for the main pipe. premium gauge steel and engineered for optimal flow, this exhaust.
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Gold Series Fatty Pipe. Kawasaki KX 250 2005-2007. Constructed of strong 19-gauge steel with a nickel-plated finish. Tru-Flo stamping process ensures a perfect fit and optimum performance.
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Gold Series Fatty Pipe. KTM XC 250 2017-2018. KTM XC 300 2017-2018. KTM SX 250 2017-2018.
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Factory Fatty Pipe. No matter what type of riding you do, the Fatty has the benefits you're looking for. KTM SX 125 2016-2018. KTM SX 150 2016-2018. Lighter 20 gauge steel used for the body of the pipe.
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Whether you're chasing podiums or simply want the best power upgrade for your Beta X-Trainer 300, the FMF Fatty Expansion Chamber is a must-have upgrade. Unlock the full potential of your Beta X-Trainer 300 with the legendary FMF Fatty Front Pipe!
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Gold Series Fatty Pipe. KTM SX 85 17/14 2018-2023. KTM SX 85 19/16 2018-2023. Tru-Flo stamping process ensures a perfect fit and optimum performance.
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No matter what type of riding you do, the Fatty has the benefits you’re looking for. Husqvarna TC 125 2014-2015. Husqvarna TE 125 2015-2016. Lighter 20 gauge steel used for the body of the pipe. NOTE: Will not pass 2025 FIM sound regulation.
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Constructed of strong 19-gauge steel with a nickel-plated finish.
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