Active Autowerke GESI Catted Downpipes – G87 M2 | G80 M3 | G82 M4 (S58)
Unleash the full potential of your BMW G87 M2, G80 M3, or G82 M4 with the Active Autowerke Signature GESI Catted Downpipes — engineered to deliver performance, reliability, and the refined tone your M-car deserves. While the G8X platform offers incredible power, its factory exhaust leaves much to be desired — quiet, muted, and lacking the character of a true ///M. The Active Autowerke GESI Catted Downpipes, part of our complete Motorsport Collection, transform the sound and response of your S58 engine while maintaining emissions compliance in 49 states. Built from TIG-welded 304 stainless steel and equipped with 4.5” GESI G-Sport Ultra High Output catalytic converters, these downpipes improve exhaust flow, reduce back pressure, and eliminate the harsh drone common with straight-pipe systems — all without triggering a CEL. The result: faster turbo spool, stronger midrange torque, and a deeper, more aggressive exhaust note that still retains everyday drivability. Performance Benefits No