Catback

Add power, sound and unique style to your BMW X5/X6 M with this aFe Power cat-back system which produced gains of up to +15 horsepower and +23 lbs....

Add power, sound and unique style to your BMW X5/X6 M with this aFe Power cat-back system which produced gains of up to +15 horsepower and +23 lbs....

Add power, sound and unique style to your BMW X5/X6 M with this cat-back system which produced gains of up to +20 horsepower and +33 lbs. x ft. tor...

Add power, sound and unique style to your BMW X5/X6 M with this cat-back system which produced gains of up to +20 horsepower and +33 lbs. x ft. tor...

The aFe MACH Force-Xp cat-back exhaust system exceeds your quality and performance expectations. Mandrel bent 304 stainless steel tubing and high ...

The aFe MACH Force-Xp cat-back exhaust system exceeds your quality and performance expectations. Mandrel bent 304 stainless steel tubing and high ...

Unleash power and sound while improving the looks on your Z4 M Coupe with this MACH Force-Xp 2-1/2" 304 stainless steel cat back system. The larger...

Unleash power and sound while improving the looks on your Z4 M Coupe with this MACH Force-Xp 2-1/2" 304 stainless steel cat back system. The larger...

Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available hor...

Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available hor...

Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available hor...

Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available hor...

Testing: Up to 31% increase in Flow. 14" Muffler: This system incorporates a large 14" stainless steel muffler which produces a mellow sound while ...

This MACH Force-Xp Cat-Back exhaust system is constructed of 3" mandrel-bent stainless steel tubing and comes complete with free-flowing high temp ...

Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in...

Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in...

The Mach Force XP cat-back exhaust system produces 11 hp and 10 lbs./ft. of torque. constructed from 2.75 in. mandrel bent 304 hand brushed stainle...

The Mach Force XP cat-back exhaust system produces 11 hp and 10 lbs./ft. of torque. constructed from 2.75 in. mandrel bent 304 hand brushed stainle...

aFe Power MACH Force XP cat-back exhaust system for the 2012-2015 BMW 335i (F30) with N55 engine produced +4 horsepower and +5 lbs. x ft. of torque...

aFe Power MACH Force XP cat-back exhaust system for the 2012-2015 BMW 335i (F30) with N55 engine produced +4 horsepower and +5 lbs. x ft. of torque...

This system is constructed of 2-1/2 IN 304 stainless steel tubing for maximum strength and durability. Includes dual high flow catalytic converters...

The Mach Force XP cat-back exhaust system produces 11 hp and 10 lbs./ft. of torque. constructed from 2.75 in. mandrel bent 304 hand brushed stainle...

aFe introduces the MACH Force XP exhaust system for the BMW M5 F10 twin-turbo. In recent testing this system produced 18 horsepower and 30 lbs. x f...

aFe introduces the MACH Force XP exhaust system for the BMW M5 F10 twin-turbo. In recent testing this system produced 18 horsepower and 30 lbs. x f...