In-house testing produced a max gain of +6 horsepower and +8 ft. lbs. of torque verified by our in-house dyno. (Tested on a 2015 BMW 428i (F32) L4-2.0L (t) N20)

aFe POWER MACH Force-XP cat-back exhaust system is constructed from 100% TIG-welded, 3 into 2-1/4 IN mandrel bent 304 stainless steel tubing for maximum flow. Included in this exhaust system are a high-flow muffler and a polished 304 stainless steel resonator for increased flow and performance across the power band while maintaining a great tone. The mufflers come with a unique high-temp powder-coated black finish for an aggressive style. To finish off this system are dual 3-1/2 IN diameter, black 304 stainless steel tips for an aggressive style. All factory mounting locations are retained to provide a simple, hassle-free installation with no modifications necessary.

Aggressive Sound:
This system includes a free-flowing, high-temp powder-coated black muffler and a polished 304 stainless steel resonator to absorb high pitch tones producing a powerful sound, virtually eliminating drone.

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

Dual 3-1/2 IN Black Tips:
Finishing off this system are dual 3-1/2 IN diameter, stainless steel tips.

Leak-Free Seal:
High-quality band clamps are used for a complete 360-degree sealing surface.

Fitment Note:
This item will not fit Convertible, Gran Coupe, xDrive models, or models equipped with L4-2.0 (t) N26 SULEV engine

Emissions Disclaimer:
This product does not require a CARB EO#

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.