This Flow master Outlaw axle-back exhaust system is specifically designed for 2015-2019 Ford Mustang coupes or convertibles with 2. 3L Eco boost or 3. 7L engines. These systems feature race proven Outlaw mufflers for a very aggressive exterior sound level with a moderate interior sound level. Features include 2. 25-inch connections for an easy fit to the stock mid pipe then the inlets quickly expand to full 3. 00-inch mandrel-bent inlet tubing leading into a pair of the race proven Outlaw mufflers for maximum performance and sound. The system is supported from the factory hanger locations for an easy and hassle free installation that can be done at home and is finished off with large 4. 00-inch highly polished stainless steel tips for that performance look and sound that you've come to expect from Flow master.