For the driver who puts miles on their M5. The Touring Edition is primarily formed from 3” (with two short 2.5” sections in the rear) T304L stainless steel, built around AWE’s patented drone-canceling 180 Technology® that eliminates the frequencies responsible for highway fatigue across the entire RPM range. The result is an exhaust that sounds exceptional on a Sunday blast and doesn’t punish you on a Monday commute.