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 IN to 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.