aFe Power Downpipe-Back Exhaust for BMW M3/M4 (F8x) [S55]
- Horsepower Increase: +15hp
- Torque Increase: +30 ft.lbs
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 black finish and a stamped aFe Power logo.
This downpipe-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.
This MACH Force-Xp downpipe-back exhaust system uses factory mounting locations providing stability and a hassle-free installation.
Quad 3.50-Inch Tips:
Finishing off this system are quad 4.00-Inch diameter.
High quality band clamps are used for a complete 360 degree sealing surface.
Brushed 304 SS Construction:
The performance downpipe-back exhaust system is constructed of 3.00-Inch to 2.50-Inch mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.
- BMW M3 (F80) [S55]
- BMW M4 (F82) [S55]
- BMW M3 (F8x) [S55]
- BMW M4 (F8x) [S55]
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