The aFe axle-back exhaust system for the BMW F80/F82 M3 and M4 utilizes an OEM style exhaust valve that works with the factory exhaust valve motor (not included) . This setup helps regulate and direct the air flow by opening and closing the passageways varying on the throttle position...resulting in optimimal performance and sound.
A free-flowing, transverse muffler is incoporated to absorb high pitch tones resulting in a powerful sound while giving you some extra horsepower and torque. Finishing off this system is a high temperature powder coated metallic black finish The muffler is finished with a high-temp powder-coated metallic black finish and a stamped aFe power logo.
- Quad, 3-1/2" diameter, 304 stainless steel polished tips
- Quad, 3-1/2" diameter, 304 stainless steel black tips with laser-etched aFe POWER logos.
- Quad, 3-1/2"diameter Carbon Fiber Tips
This part does not require a CARB EO#. Read More here.
All aFe exhaust systems are engineered and manufactured in aFe's Corona, California facility.
- +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 double wall, stainless steel tips
- Uses all factory hanger locations for a hassle-free installation
2 Year Limited Warranty
All warranty is limited only to the repair and/or replacement of the aFe product. Under no circumstances will the obligation or liability of aFe exceed the purchase price of the product as indicated on the original bill of sale. aFe excludes and disclaims any liability or obligation for incidental or consequential damages and cost related to such damages including but not limited to installation, removal or repair labor, rental vehicles, tow or any other inconvenience costs. Such costs will be the responsibility of the vehicle owner.
aFe does not warranty any open box, used or items purchased from third-party eBay sellers.
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