This exhaust system is designed for Ford Mustang GT owners from 2015 - 2017 who want to enhance their vehicle's performance and sound. Whether you're driving on city streets or taking a long highway trip, this exhaust will make your driving experience better. It has a 3 - inch cat - back dual split rear design with 4.5 - inch tips. The system is made of T409 Stainless Steel, which is corrosion - resistant and easy to clean. If you don't face heavy precipitation and salt on the roads, this exhaust is all you need for a long - lasting upgrade.