FMF FACTORY FATTY EXPANSION CHAMBER

SX 85 2025 - 2027

Silencer housing made of high-grade titanium
Rich soundLow noise level
Blue anodised outer sleeve
Easy to mount
Perfect fit
Extremely low weight
Specially developed for enduro use

Recommended in combination with a FMF Fatty pipe for a perfectly matched full system with optimum performance

Silencer housing made of high-grade aluminum
Rich sound
Low noise level
Easy to mount
Perfect fit
Specially developed for enduro use
Reduced weight

For a system with optimized performance and perfect balance we recommend the combination with the FMF Fatty expansion chamber.

Silencer housing made of high-grade aluminum
Stainless steel silencer cap
Rich sound
Permanently welded brackets
Easy to mount
Reduced weight

For a system with optimized performance and perfect balance we recommend the combination with the FMF Fatty expansion chamber.

Extra strong sheet steel
Nickel-plated surface
Wide, even engine speed range
Better gas control

Combination with FMF silencer recommended

Full sound
Extra strong sheet steel
Nickel-plated surface
Better power delivery

Combination with FMF silencer recommended

Silencer housing made of high-grade aluminum
Stainless steel silencer cap
Rich sound
Permanently welded brackets
Easy to mount
Reduced weight

For a system with optimized performance and perfect balance we recommend the combination with the FMF Fatty expansion chamber.

Silencer housing made of high-grade titanium
Uncompromising race look
Sensitive response
Increased performance
Improved throttle response and increases in both power and torque
Substantial weight saving

Saving almost 20% weight compared to the stock expansion chamber (ca. 0,4 kg).

Silencer housing made of high-grade titanium
Uncompromising race look
Increased performance
Improved throttle response and increases in both power and torque

Substantial weight savingSaving almost 20% weight compared to the stock expansion chamber (ca. 0,4 kg).

Greater performance due to special engine mapping
Higher speed
Silencer housing made of high-grade titanium
Uncompromising race look
Improved throttle response and increases in both power and torque
Designed to get the best performance from the motorcycle

Substantial weight savingSaving 15 % weight compared to the stock expansion chamber (ca. 0,3 kg).

Suitable for standard silencers
Untreated surface
Uncompromising race look
Sensitive response
Increased performance
Improved throttle response and increases in both power and torque
Substantial weight saving

Saving almost 20% weight compared to the stock expansion chamber (ca. 0,4 kg)

Suitable for standard silencers
Greater performance due to special engine mapping
Untreated surface
Higher speed
Uncompromising race look
Improved throttle response and increases in both power and torque
Designed to get the best performance from the motorcycleSubstantial weight saving

Saving 15 % weight compared to the stock expansion chamber (ca. 0,4 kg)

Specially developed for use in motocross
Silencer housing made of high-grade aluminum
Rich soundLow noise level
Easy to mountPerfect fit
Reduced weight

Recommended in combination with a FMF fatty pipe for a perfectly matched full system with optimum performance

Specially developed for use in motocross
Silencer housing made of high-grade aluminum
Rich sound
Low noise level
Easy to mount
Perfect fit
Reduced weight

Recommended in combination with a FMF fatty pipe for a perfectly matched full system with optimum performance

Full sound
Extra strong sheet steel
Nickel-plated surface
Better power delivery
Higher maximum power
Combination with FMF silencer recommended

Specially developed for use in motocross
Silencer housing made of high-grade aluminum
Stainless steel silencer cap
Rich sound
Permanently welded brackets
Easy to mount
Reduced weight

For a system with optimized performance and perfect balance we recommend the combination with the FMF Fatty expansion chamber.