aFe Power MACH Force XP cat-back exhaust system for the 2012-2015 BMW 335i (F30) with N55 engine produced +4 horsepower and +5 lbs. x ft. of torque. The system was designed and engineered with the perfect tube diameter and lengths, ultimately maximizing performance across the power band while maintaining a great tone with an aggressive sound during shifting. The exhaust is constructed from 3" TIG-welded, brushed finish, mandrel-bent, 304 stainless steel. To finish off this exhaust are dual, aFe laser etched, 3.5" polished 304 stainless steel tips. This exhaust uses all factory hanger locations.