Active Autowerke BMW F87 M2 Competition Equal Length Exhaust MidpipeUnlock the true sound and performance potential of your BMW F87 M2 Competition or M2 CS with the Active Autowerke Equal Length Exhaust Midpipe. Designed to resolve the uneven, raspy tone commonly found in S55 powered models, this midpipe features a patented sinusoidal crossover that equalises exhaust pulses from the turbochargers, producing the refined and balanced tone enthusiasts expect from a straight six engine. Key Features: Equal Length Design