This Flowmaster Outlaw Axle-back exhaust system is specifically designed for the 2018 and 2019 Ford Mustang GT coupe and convertible with the 5.0L engines. This system features the race proven Outlaw mufflers for a very aggressive exterior sound level with noticeable interior sound. The system utilizes 3.00 in. mandrel bent 409S stainless steel tubing with 4.00 in. polished stainless steel tips for an aggressive look that matches the sound level. This system is designed for vehicles without active exhaust valves and includes all the necessary hardware to complete the installation.Exhaust Type: Axle-BackExit Position: Dual RearInlet Inside Diameter: 3.000 in.Material: 409S Stainless SteelMuffler Body Length: 6.500 in.Tail 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