Upgrade your 2016-2024 Chevrolet Camaro SS or ZL1 with the Flowmaster 817746 American Thunder Axle-Back Exhaust System. Designed for vehicles equipped with the factory NPP performance exhaust and quad exhaust tips, this system delivers a deep, powerful tone during everyday driving and an aggressive race-inspired sound in Track mode. It is compatible with both coupe and convertible models and is engineered to retain the factory-style quad-tip appearance.
The Flowmaster 817746 system uses tandem 40 Delta Flow Series mufflers for a refined sound in Stealth mode, along with race-proven Outlaw mufflers that increase the open-exhaust character when Track mode is selected. Functional exhaust valves work with the original equipment actuator motors, allowing the vehicle’s factory controls to manage sound levels. Large polished stainless steel tips complete the system with a finish that closely replicates the original quad NPP exhaust design.
Constructed entirely from stainless steel, this axle-back exhaust is dyno tuned for performance and installs using the factory hanger locations. The complete kit includes the necessary components, valves, hardware, and installation parts for a straightforward fit. It is also compatible with the Flowmaster Scavenger Series X-pipe, part number 81083, for applicable manual-transmission applications with factory MDS valves. Flowmaster backs the system with a Lifetime Limited Warranty.
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