Products

FMF FACTORY FATTY EXPANSION CHAMBER

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

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

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

Extra strong sheet steel

Nickel-plated surface

Wide, even engine speed range

Higher speed

More traction

Better gas control

Combination with FMF silencer recommended

Extra strong sheet steel

Nickel-plated surface

Full sound

Better power delivery

Extra strong sheet steel

Nickel-plated surface

Higher maximum power

Higher speed

Full sound

Better power delivery

Full sound

Extra strong sheet steel

Nickel-plated surface

Better power delivery

Higher maximum power

Combination with FMF silencer recommended

Full sound

Extra strong sheet steel

Nickel-plated surface

Better power delivery

Extra strong sheet steel

Nickel-plated surface

Wide, even engine speed range

Better gas control

Combination with FMF silencer recommended

Extra strong sheet steel

Nickel-plated surface

Full sound

Better power delivery

Combination with FMF silencer recommended

• Tangible performance boost over the entire engine speed range
• Highest quality workmanship
• Manifold routing optimally adapted to the production engine
• Resonator chamber for optimum torque distribution and noise reduction

• Tangible performance boost over the entire engine speed range
• Highest quality workmanship
• Manifold routing optimally adapted to the production engine
• Resonator chamber for optimum torque distribution and noise reduction
• Manufactured entirely from high-grade titanium

Tangible performance boost over the entire engine speed range

Highest quality workmanship

Manifold routing optimally adapted to the production engine

Resonator chamber for optimum torque distribution and noise reduction

Tangible performance boost over the entire engine speed range

Highest quality workmanship

Manifold routing optimally adapted to the production engine

Resonator chamber for optimum torque distribution and noise reduction

Manifold routing optimally adapted to the production engine

Resonator chamber for optimum torque distribution and noise reduction

Manufactured entirely from high-grade titanium

Tangible performance boost over the entire engine speed range

Highest quality workmanship

Tangible performance boost over the entire engine speed range

Highest quality workmanship

Manifold routing optimally adapted to the production engine

Resonator chamber for optimum torque distribution and noise reduction

Manifold routing optimally adapted to the production engine

Resonator chamber for optimum torque distribution and noise reduction

Manufactured entirely from high-grade titanium

Tangible performance boost over the entire engine speed range

Highest quality workmanship

Manifold routing optimally adapted to the production engine

Improved throttle response and increases in both power and torque

Resonator chamber for optimum torque distribution and noise reduction

Highest quality workmanship

Tangible performance boost over the entire engine speed range

Manufactured entirely from high-grade titanium

Manifold routing optimally adapted to the production engine

Resonator chamber for optimum torque distribution and noise reduction

Tangible performance boost over the entire engine speed range

Highest quality workmanship

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

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

Specially developed for use in motocross

Silencer housing made of high-grade aluminium

Stainless steel silencer cap

Rich sound

Low noise level

Permanently welded brackets

Easy to mount

Perfect fit

Reduced weight

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

Specially developed for use in motocross

Silencer housing made of high-grade aluminium

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 aluminium

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 aluminium

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

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

Specially developed for use in motocross

Silencer housing made of high-grade aluminium

Rich sound

Low noise level

Easy to mount

Perfect fit

Reduced weight

Silencer housing made of high-grade aluminium

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

• Made of the highest quality materials
• Significantly more performance
• Improved torque curve

Made of the highest quality materials

Significantly more performance

Improved torque curve

Silencer housing made of high-grade titanium

Titanium silencer cap

Rich sound

Low noise level

Easy to mount

Perfect fit

Extremely low weight

Blue anodised outer sleeve

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

• Easy to mount
• Perfect fit
• Extremely low weight
• Titanium silencer cap
• Rich sound
• Low noise level
• Silencer housing made of high-grade titanium
• Blue anodized outer sleeve

Silencer housing made of high-grade titanium

Blue anodised outer sleeve

Rich sound

Low noise level

Easy to mount

Perfect fit

Extremely low weight

Silencer housing made of high-grade titanium

Blue anodised outer sleeve

Rich sound

Low noise level

Easy to mount

Perfect fit

Extremely low weight