Flowmaster American Thunder Single Exhaust System - 2005-09 Ford Mustang V6 R040003XL 2007-2013 GMC Sierra 3500 HD

2007-2013 GMC Sierra 3500 HD

Dual mandrel-bent wrinkle-black powder-coated aluminum intake tubes direct unrestricted airflow from the filter to the turbos for more horsepower and torque

Mandrel-bent for Maximum Performance

Windage Tray Stud

Flowmaster American Thunder Single Exhaust System - 2005-09 Ford Mustang V6 R040003XL 2007-2013 GMC Sierra 3500 HDThis aggressive sounding system is designed to replace the original rear mounted mufflers located behind the rear axle. With easy fit in mind, the system is mandrel bent for maximum performance and includes specially selected mufflers to support the performance image of the car. As an America Thunder system, it delivers an aggressive exterior tone with moderate interior sound level that is suited to the enthusiast who wants their performance to be