FMF Factory Fatty expansion chamber

Ref: 55505907001

This product is compatible with your selected bike.
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  • Made of high quality, extra strong and durable steel
  • Untreated surface for an unadulterated factory look
  • Broader, smoother powerband
  • Higher speed
  • More traction, better throttle control
  • Complete with o-rings
  • Combination with FMF silencer recommended


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