FMF Fatty expansion chamber

35 years of racing experience: The FMF factory pipes have been specially developed for the hardships of offroad life. That’s why they’re made from high quality, extra thick, hardwearing sheet steel. An elegant appearance is ensured by the nickel-plated surface. For years and years.
Additional features:

• Wider, smoother rev range
• Higher top speed
• More traction, better control when accelerating
• Nickel-plated surface
• Including O-rings

For a perfectly tuned and performance-optimised overall system, we recommend combining with an FMF MX silencer.