Flowmaster American Thunder Single Exhaust System - 2004-2006 Chevy/GMC C/K 1500 (non-HD) 4.8L/5.3L 57941111 1/4 in Diameter

1/4 in Diameter

Bucket Seat

Pump offers double-seal technology

Clamp-on design is formed of two halves which bolt together around 1" to 1-1/4" round tubing

PROVEN SINCE 1954

Flowmaster American Thunder Single Exhaust System - 2004-2006 Chevy/GMC C/K 1500 (non-HD) 4.8L/5.3L 57941111 1/4 in DiameterFor 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