2011-2014 Ford Mustang GT 5.0 Roush 421127 Axle Back Muffler Exhaust Kit

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•Brand New in the Roush Performance Box •Fits ALL 2011-2014 Mustang GT's & 2011-2012 GT500 •Unique open-chambered design provides increased horsepower and torque by increasing airf low and reducing back pressure •Distinct aggressive sound (sound clips below) •Uses 409 stainless steel in the construction of the pipes and muffler. •Roush exclusive open-chambered design that will not deteriorate over time unlike conventional fiberglass roving material. •Exhaust tips are made from 304 stainless steel and finished with a unique chrome flashing process. •Chrome-flashing on tips provides heat resistance to change. •No negative impact on any type of emission devices. •Hollow chamber yields higher airflow. •Highly tuned system avoids the annoying in-cockpit boom, which can occur with competitive systems. •Fits both Ford factory and Roush rear valance. •Tip openings are oval-shaped, 4" x 4.5" Installation is quick, easy, and uses all factory hanger locations and pierce points. No modifications to the vehicle are necessary. All the hangers are chromed for superior appearance and corrosion resistance. New, high quality OE-spherical clamps are included in the kit. Kit contains: (1) LH Muffler Assembly (1) RH Muffler Assembly (2) Round Chrome Flashed Exhaust Tips (2) Inlet Pipe Spherical Clamps (2) Exhaust Tip Clamps (1) Installation Manual Click here for video! Show more