aFe MACH Force-Xp Axle Back Exhaust w/ Carbon Fiber Tips (S55: M3/M4)

Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque. The muffler is finished with a high-temp powder-coated metallic black finish.

Exhaust Valve: This Axle-back exhaust system incorporates a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position for maximum performance.

Simple Installation: This MACH Force-Xp cat-back exhaust system uses factory mounting locations providing stability and a hassle-free installation.

Quad 3-1/2" Carbon Fiber Tips: Finishing off this system are Quad 3-1/2" diameter, carbon fiber tips with an aFe POWER logo.

Brushed 304 SS Construction: The performance axle-back exhaust system is constructed of 2-1/2" to 3" mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.

Features:

• +17 HP and +25 lbs. x ft. Torque max gains
• Constructed from 100% hand TIG-welded, 2-1/2" to 3" mandrel bent, brushed finished 304 stainless steel tubing
• Includes a factory style exhaust valve
• Utilizes a unique high flow, transverse muffler with a high-temp powder-coated metallic black finish
• Includes Quad, 3-1/2"diameter Carbon Fiber Tips with aFe POWER logo
• Uses all factory hanger locations for a hassle-free installation

• BMW M3 2015-2018
• BMW M4 2015-2019