FMF Fatty expansion chamber

35 years of racing experience: The FMF factory exhausts are specifically designed for the hard life off-road. That is why they are made of high quality, extra strong and durable steel. The nickel-plated surface ensures the classic look; for years.
Other characteristics include:

• Broader, smoother powerband
• Higher speed
• More traction, better throttle control
• Nickel-plated surface
• Complete with o-rings

For a system with optimized performance and perfect balance we recommend the combination with a FMF Factory or Six Days main silencer.