Description
Overview
The Flowmaster American Thunder Cat-back Exhaust System is engineered for drivers who want a bold, aggressive exterior sound while keeping a moderate, livable tone inside the cabin. Purpose-built for the 2015-2023 Dodge Challenger Hellcat and Demon with the 6.2L engine, the SRT392 and R/T Scat Pack models with the 6.4L engine, and the 2017-2023 R/T with the 5.7L engine, this system delivers the performance and attitude you expect from Flowmaster.
Constructed from durable 409S stainless steel, the American Thunder system uses mandrel-bent dual 3.00-inch tubing that flows into the exclusive Scavenger Series X-pipe assembly for maximum power and a deep, unique tone. From there, the exhaust routes into a pair of specially built Super 40 Series mufflers, tuned to strike the ideal balance between an assertive outside note and a comfortable interior sound level.
Key Benefits
This is a true bolt-on upgrade that mounts to the factory hanger locations for a straightforward installation, using a flanged mount type for a secure, repeatable fit. The tailpipes incorporate clever “dummy valve stands” that fool the factory actuators into thinking they’re still operating the OE valves, so you always enjoy that wide-open sound and performance without throwing a code.
The stainless steel tailpipes are finished with Quad 3.50-inch polished 304 stainless steel tips featuring an embossed logo, exiting cleanly within the rear bumper valence for an aggressive, factory-integrated look. The result is a purposeful stance and an unmistakable presence that matches the muscle underneath.
Highlights
- 409S stainless steel construction with mandrel-bent dual 3.00-inch tubing for smooth, unrestricted flow
- Exclusive Scavenger Series X-pipe assembly for maximum power and a deep, unique tone
- Specially built Super 40 Series mufflers deliver aggressive exterior sound with a moderate interior level
- Quad 3.50-inch polished 304 stainless steel tips with embossed logo, exiting within the rear bumper valence
- “Dummy valve stands” trick factory actuators so you get wide-open sound without setting a code
- Uses factory hanger locations for easy, bolt-on installation
Fitment
Designed specifically for the 2015-2023 Dodge Challenger Hellcat and Demon (6.2L), the SRT392 and R/T Scat Pack (6.4L), and the 2017-2023 R/T (5.7L). The system is CARB (California) compliant with an emission code of 5. Please note the California Proposition 65 warning. A heat shield is not included.
Backed by Flowmaster’s Lifetime Limited Warranty, the American Thunder Cat-back system pairs proven engineering with premium materials to transform your Challenger’s sound and style. Choose the American Thunder for the deep, unmistakable tone and dependable performance that make Flowmaster a trusted name among enthusiasts.
