This Flowmaster Outlaw axle-back exhaust system is specifically designed for 2015-19 Ford Mustang coupes or convertibles with 2.3L eco-boost or 3.7L V6 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 Outlaw race mufflers for maximum performance. 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 4.00-inch brightly polished stainless steel tips for that performance look and sound that you've come to expect from Flowmaster. Covered by our Lifetime Limited Warranty.Exhaust Type: Axle-BackExit Position: Dual RearInlet Inside Diameter: 3.000 in.Material: 409S Stainless SteelTail Pipe Diameter: 3.000 in.Tip Diameter: 4.000 in.Tubing Diameter: 3.000 in.WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov