KTM FMF Fatty Expansion Chamber

Fitment: 250 SX 19-20, 250/300 XC 19-20, 250/300 EXC/XC-W 20


  • Made of high quality, extra strong and durable steel
  • Nickel-plated surface
  • Broader, smoother powerband
  • Higher speed
  • More traction, better throttle control
  • Complete with o-rings
  • Combination with FMF silencer recommended

KTM FMF Fatty Expansion Chamber55505907000

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Available In-Store

The KTM FMF Fatty Expansion Chamber will deliver race proven performance. Get more power and a smoother power band, as well as improved traction and throttle control.



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