Product Description
Flowmaster 817508 Cat-Back System 409S Dual Rear Exit American Thunder Aggressive Sound Exhaust Kit: Automotive. 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. For the person who is looking for a complete cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage.
Shipping Weight: 67 pounds
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