Flowmaster 17435 - American Thunder Cat-back Exhaust System

1999-07* Chevrolet Silverado/GMC Sierra 1500 with 4.8L, 5.3L engines. (*See applications below) For 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 delivers a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Note: Fits 2007 Classic body only. Does not fit 2007 new body style trucks.