Active Autowerke Gen 2 Signature Equal Length Mid-Pipe with X-Pipe – BMW G8X M3 / M4

After extensive R&D, Active Autowerke proudly introduces the Gen 2 Signature Equal Length Mid-Pipe with X-Pipe — a refined evolution of our patented exhaust technology, now engineered specifically for the BMW G80 M3 and G82 M4. Featuring newly developed resonators, the Gen 2 system eliminates unwanted rasp and drone while maintaining the aggressive tone enthusiasts expect. This update also reduces the infamous 2k rpm buzz and tones down the factory cold-start rattle, creating a smoother, deeper, and more sophisticated exhaust note throughout the rev range. Building on the success of our original F8X Equal Length Mid-Pipe, this G8X version corrects BMW’s factory over-compensation in exhaust length — precisely balancing both banks for a truly equal-length configuration. The result is a smoother, high-rev scream that transforms the S58’s muted tone into an unmistakably authentic BMW M sound. Engineered Precision. Motorsport DNA. Designed for racing and off-road applications, this mid-