Cat-back 99-06 GM 1500 143.5

Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate Sound

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 deliver 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.

Fits 1999 to 2006 Chevrolet and GMC 1/2 Ton truck with a 4.8L or 5.3L engine using a single flanged catalytic converter, fits 2 and 4 wheel drive with Extended Cab and short bed configuration on a 143.5 inch wheelbase.