While many of our customers prefer an exhaust system that lies somewhere between too quiet and too loud, some of our customers just want their M3 to sound like an untamed beast. So is the case with this Jet Black E90, which features the Macht Schnell Race Catless X-Pipe mated to a modified OEM muffler section. Essentially a twin resonated full straight-pipe system, this exhaust combination lets the S65 scream as loud as it wants. Also equipped with a pulley, tune and intake, this head-turning M3 recorded a run of 390whp SAE, which translates into the sought after 400whp mark in STD. Watch the video below to hear this unassuming Sedan give it everything it has.

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