Active Autowerke Gen 2 Signature Equal Length Mid-Pipe BMW G80 M3 / G82 M4

Transform the exhaust note of your S58-powered BMW with the Active Autowerke Gen 2 Signature Equal Length Mid-Pipe. Rather than simply making the G80 M3 or G82 M4 louder, Active’s patented equal-length design corrects the unequal exhaust path created by the factory system to produce a smoother, cleaner, and more exotic high-RPM exhaust note. The Gen 2 system takes the concept a step further with specially developed resonators designed to reduce rasp with minimal impact on overall volume while also helping minimize the characteristic 2,000 RPM buzz and factory cold-start rattle. Constructed entirely from brushed 304 stainless steel, the system improves exhaust flow while bringing considerably more character out of the S58. For G8X owners who dislike the factory exhaust tone and want a more refined sound than a traditional single mid-pipe, the Active Autowerke Equal Length Mid-Pipe is one of the most comprehensive ways to change the personality of the car. Fitment Notes Fits 2021+ BMW M3 Sedan (G80) Fits 2021+ BMW M4 Coupe (G82) Designed for vehicles equipped with the S58 twin-turbocharged engine Requires two cuts to the factory mid-pipe for installation Uses factory-style flanges and clamps for straightforward installation Designed to work with exhaust systems utilizing factory-style connections Factory mid-pipe can be reinstalled if the vehicle needs to be returned to stock Active Autowerke recommends the resonated Gen 2 version for vehicles equipped with aftermarket downpipes Active Autowerke has tested the system with factory and Active Autowerke downpipes and factory and Active Autowerke rear exhausts Fitment and sound results are not guaranteed with other manufacturers' rear exhaust systems Part of Active Autowerke's Motorsport Collection and designated for race/off-road use only Included Active Autowerke Gen 2 Equal Length Mid-Pipe assembly Integrated Gen 2 resonators Factory-style exhaust flanges Required exhaust clamps and installation hardware Product Specs Active Autowerke SKU: 11-114R2 Configuration: Gen 2 Equal Length Mid-Pipe Material: 100% 304 brushed stainless steel Design: Patented Active Autowerke Equal Length Technology U.S. Patent: 11248511 UK / EU Patent: 3882441 Gen 2 design incorporates additional resonators Installation requires two cuts to the factory mid-pipe Factory-style flange and clamp connections One-year warranty Product Features Patented equal-length exhaust design corrects the unequal factory exhaust path to create a smoother and more refined high-RPM S58 exhaust note Gen 2 resonator technology reduces rasp with minimal reduction in overall exhaust volume Helps reduce the common 2K RPM buzzing and cold-start rattle associated with the factory G8X exhaust Replaces the restrictive factory mid-section for improved exhaust flow and a significantly more aggressive M-car sound 304 stainless steel construction provides excellent durability and corrosion resistance Factory-style connections allow compatibility with appropriately configured factory and aftermarket rear exhaust systems