Add more horsepower and performance to your 2015-21 Mustang with a new mid-pipe from Late Model Restoration. By replacing your restrictive resonator with a high flow mid-pipe, you will improve your Mustang's exhaust flow, helping free up power and performance. These mid-pipes are wider in diameter and are offered with or without catalytic converters. Choose a catalytic mid-pipe to keep your S550 emissions legal with two high-flow catalytic converters. These mid-pipes are offered in various finishes to get your exhaust system looking and sounding great! These mid-pipes fit 2015-21 Mustangs.