Developed for the BMW E24 M6 this Billy Boat Performance Exhaust cat back exhaust is precision crafted using 100% T304 stainless steel. A smooth uninterrupted exhaust flow is achieved with CNC mandrel bent tubing. Through a combination of sound cancelation and absorption the straight through design muffler offers a deep rich exhaust note on acceleration with a mild tone at idle and cruising speeds as well as increasing horsepower and torque. Following the factory layout and mounting in the factory hangers allows for an easy do it yourself installation. A set of 3” rolled edge tips will give the BMW an individual look. No engine management sensors are moved or altered therefore this system is 50 state emissions legal and is backed with their limited LIFETIME warranty.