This MBRP exhaust system is perfect for Ford Focus ST owners from 2013 to 2018 who want to enhance their vehicle's performance and sound. It's great for daily driving or weekend road trips. If you live in a dry area with little precipitation or are on a budget, this is an ideal choice. The exhaust uses 3 - inch tubing with mandrel bends, and is made of heavy - gauge Aluminized Steel, which is durable and helps your engine perform better.