Active Autowerke - Signature Exhaust System includes Active F-Brace || F8x (M3/M4)

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. 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 exhaust scavenging along with higher exhaust velocity to produce a quicker spool, more power, and a much smoother exhaust note. We believe that we've built the best-performing exhaust on the market. With the reduced back pressure and large single-pipe d