Active Autowerke F8X M3 M4 Signature Exhaust System includes Active F-brace

NOTE: THESE ARE BUILT TO ORDER AND MAY TAKE UP TO 2 WEEKS TO BUILD. Active Autowerke is proud to announce the release of our Signature F8X M3/M4 Exhaust System. This system is the result of countless hours of R&D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, we have created a modular exhaust system that will provide enough flow to support power levels way above the stock S55. This is a full exhaust system which includes a variant of our single midpipe and does require a separate midpipe. If you want the unique sound of our equal length midpipe, you should consider our equal length midpipe plus our Maad Maxx rear exhaust. The stock S55 Midpipe is a dual pipe system from each turbo that leads to the rear muffler. The resulting sound is far from pleasant, and without any real scavenging effect the turbo lag is fairly pronounced. By converting to a single 3.5" pipe directly after the downpipes, our system promotes exh