For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With an easy fit in mind, these systems feature a mandrel-bent 2.50-inch aluminized steel inlet pipes flowing into a pair of Super 44™ Series mufflers for maximum performance and a deep powerful sound. The system utilizes the factory exhaust hangers for a quick and easy installation and the large 2.50-inch mandrel-bent tailpipes exit straight out the back with a turn down at the lower valance. The American Thunder® systems deliver a moderate to aggressive interior and exterior tone and are best 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 Coupes and Convertibles. Check out optional our stainless steel system #817116 covered by our Lifetime Limited Warranty. All Aluminized steel exhaust systems are covered by our 3-year Limited Warranty.