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 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 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 exhaust tips with an aFe POWER logo.
Brushed 304 SS Construction:
The performance down-pipe back exhaust system is constructed of 3" to 2-1/2" mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe POWER competition acknowledgement/liability release form must be filled out and submitted.
aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.
Year Make Model SubModel Engine Fuel 2015-2018 BMW M3 L6 3.0L Gas 2015-2019 BMW M4 L6 3.0L Gas
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- A Must Have Exhaust for the F8x BMW !!
Let me start by saying this exhaust is amazing!! Everyone compliments my car now saying how it sounds like I'm driving a Formula One Car. The great thing about this exhaust is it isn't obnoxious for a cold start like it is stock(referring to that crazy rattle of a coldstart). It makes your car just have this "deep mean gurgle" to it. Im obsessed! Cant drive my car enough now. I will say my seats now vibrate a bit with this exhaust but I'm not complaining, and neither are my passengers ;) haha with the Valve control it certainly helps with make the car day and night while driving but be ready to clean those right side pipes a little more.
-Only reason I gave a 4 star on quality was because of the welding, Im from a family of welders so I was not 100% impressed with how it looked.. and some pieces weren't ground down so friends and myself that installed the exhaust kept getting cut. THIS REALY DOESNT MATTER its all under the car anyway- was just a personal note so you know I'm being honest.