Upgrade your Mustang’s performance and presence with the Roush Performance Black-Tip Cat-Back Exhaust System for 2015-2017 Mustang GT models. Designed for improved horsepower and torque, this system features mandrel-bent stainless steel tubing and dual black 4” tips. The deep, aggressive tone sets your Mustang apart while retaining drivability and comfort. With a factory-fit design, this cat-back system bolts on easily and brings track-inspired performance to your street machine.