Aggressive Muscle Car Sound. Let your engine howl with a Roush Axle-Back Exhaust. This innovative new Roush exhaust system features a hollow chamber muffler that results in increased air flow, and a unique sound, with no in-cabin "boom" normally found with performance exhaust at cruising speeds.
Quality Roush Construction. Constructed from 409 stainless steel for a durable long life, the Roush axle-back exhaust system features two unique chambered mufflers with square shaped 304 stainless steel tips. The square tips are finished with a new chrome flashing process that is resistant to discoloration due to exhaust heat.
Application. This Roush Performance Axle-Back exhaust system with square exhaust tips is designed to fit the 2011-2012 GT Mustangs with the Roush rear valance installed.