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Audi A4 Competiton B9 Sedan / Avant (2019-)
BMW F32/F36 430I (2014+
Compatible BMW Models (N55 Engine):
Track use only
Active Autowerke BMW F80 M3 & F82/F83 M4 Gen 2 Equal Length Midpipe Select Version:Resonated Audi A4 Competiton B9 SedanThe Active Autowerke Gen 2 Equal Length Midpipe for the BMW F80 M3 and BMW F82 F83 M4 is the result of years of in depth research and development aimed at solving one of the most commonly criticised aspects of the S55 engine its exhaust tone. Unlike conventional crossover or X pipe designs, this patented system corrects the unequal exhaust pulse timing created by the factory downpipe length difference, delivering a smoother, deeper and more natural
