2013 Mustang GT factory exhaust sound vs 2013 Mustang GT with Flowmaster exhaust, part number 817588. This upgraded system can be purchased and optionally installed at:
Buhler's Performance Garage, 105 Route 36, Eatontown NJ.
(732 330 2329-Joe Amato)
Visit our website BuhlersPerformance.com for more information.

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