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Roush 421145 2011-2014 Ford Mustang V6 3.7 3.7L Axle Back Muffler Exhaust Kit

Manufacturer Part # 421145

SKU RH421145
Sold out
Original price $699.99
Original price $699.99 - Original price $699.99
Original price $699.99
Current price $689.99
$689.99 - $689.99
Current price $689.99
Out of stock

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•Unique open-chambered design provides increased horsepower and torque by increasing airflow and reducing back pressure
•Distinct aggressive sound (sound clips available at
•409 stainless steel pipes and muffler
•304 stainless steel exhaust tips with chrome flashing helps prevent peeling
•Installation is quick and easy. Uses factory hanger locations. No vehicle modifications are required.
•Does not negatively affect emissions
•Fits both Ford factory and ROUSH rear valance
•No in-cockpit boom/drone
•3 Year Limited Warranty
•Fits manual and automatic
•Tip openings are oval-shaped, 4" x 4.5"

(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

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