Flowmaster American Thunder Single Exhaust System - 1999-2006 Chevy/GMC 1500 4.8L/5.3L 13025 Water Header

Water Header

1999-2009 GMC C6500 Topkick

50 Inverted Flare Male

Excellent Energy Delivery

Flowmaster American Thunder Single Exhaust System - 1999-2006 Chevy/GMC 1500 4.8L/5.3L 13025 Water HeaderFor the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster Cat back exhaust system provides. D. O. R. D. O. S. systems are the perfect choice, and include exit pipes for both dual out rear and dual out side configurations so that you can choose the one that fits your style. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants