Flowmaster American Thunder Cat-Back For GM Silverado/Sierra 14-19 (817669)

The Flowmaster American Thunder cat-back exhaust system is a performance upgrade designed specifically for 2014-2019 (Classic body) GM Silverado and Sierra 1500 trucks. Constructed with stainless steel mandrel bent tubing, it features a Super 40 series muffler that delivers an aggressive exterior sound with a moderate interior tone. This emissions-legal bolt-on system enhances vehicle performance and durability, finishing with large polished stainless steel tips. It uses factory hanger locations for an easy installation and includes all necessary hardware, providing a seamless upgrade with Flowmaster’s signature sound and quality.

This exhaust system is compatible with Crew Cab and Double Cab models equipped with 4.3L or 5.3L engines. It offers options for dual tailpipe exits either out the rear bumper or behind the rear tires, catering to different aesthetic preferences. Designed for street use, it provides a balance of sound and performance benefits, making it suitable for daily driving and performance enthusiasts alike. The system is a direct replacement for the factory exhaust, ensuring a straightforward bolt-on upgrade that maximizes sound and flow.