KTM FMF Fatty Expansion Chamber

Fitment: 50 SX 09-10


  • Made from high quality, extra strong and durable sheet steel
  • Nickel-plated surface
  • Wide, even rev band
  • High rev speed
  • More traction and better control under full throttle
  • Including O-rings

Recommended in combination with an FMF silencer for a perfectly matched full system with optimum performance

KTM FMF Fatty Expansion ChamberSXS09050500


The KTM FMF Fatty Expansion Chamber offers improved traction and control even at full throttle! This extremely durable, nickel-plated component is the perfect match for an FMF silencer if you want to achieve superior riding performance.

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