Flowmaster’s Outlaw Cat-back exhaust system for the 2015-2017 Ford Mustang GT is perfect for the person looking for a very deep and aggressive sound level outside and inside the car with all of the performance benefits that you would expect from Flowmaster. This exhaust is not for the faint of heart! This bolt-on DOR (Dual Out Rear) emissions-legal system for cars with the 5.0L engine features a pair of race proven Outlaw Series mufflers, a 3.00 in. Scavenger X-pipe assembly and dual mandrel bent 3.00 in. tailpipes for maximum performance. The system is built out of 409S stainless steel and utilizes 4.00 in. Polished Stainless Steel Flowmaster Embossed tips. Designed for an easy fit, this system includes all necessary parts and hardware for installation.