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.Emissions Disclaimer: This product does not require a CARB EO#All aFe exhaust systems are engineered and manufactured in our Corona, California facility.

This Part Fits:

Year	Make	Model	Submodel
2015-2018	BMW	M3	Base
2015-2020	BMW	M4	Base
2019-2020	BMW	M4	CS
2016	BMW	M4	GTS