Description
The Flowmaster American Thunder Cat-Back Exhaust System delivers an aggressive exterior sound with a moderate interior tone while maximizing performance across the entire RPM range. Designed specifically for high-performance Dodge Challenger models, it is compatible with the 2015–2023 Hellcat and Demon (6.2L), the SRT392 and R/T Scat Pack (6.4L), and the 2017–2022 R/T (5.7L).
This system features large 3.00-inch mandrel-bent 409S stainless steel tubing that feeds into Flowmaster’s Scavenger Series X-pipe for increased horsepower, torque, and exhaust scavenging. A pair of Super 40 Series chambered mufflers produces the deep, powerful tone expected from Flowmaster’s American Thunder lineup.
To maintain proper operation of the factory actuators without retaining the restrictive factory valves, the system includes “dummy valve stands” that prevent error codes while delivering a consistent wide-open sound. The kit finishes with quad 3.50-inch polished 304 stainless steel tips that fit cleanly within the rear bumper valence. Installation is simple thanks to factory hanger compatibility, and the system is backed by Flowmaster’s Lifetime Limited Warranty.
Fitment
Fits the following models:
• 2015–2023 Dodge Challenger Hellcat with 6.2L engine
• 2015–2023 Dodge Challenger Demon with 6.2L engine
• 2015–2023 Dodge Challenger SRT392 with 6.4L engine
• 2015–2023 Dodge Challenger R/T Scat Pack with 6.4L engine
• 2017–2022 Dodge Challenger R/T with 5.7L engine
Features
• Exclusive Scavenger Series X-pipe for maximum power
• 3.00-inch mandrel-bent dual stainless steel exhaust tubing
• Includes dummy valve stands for OE actuator compatibility
• Quad 3.50-inch polished 304 stainless steel tips
• Dyno-tuned for optimal performance
• Uses factory hanger locations for easier installation
• Durable stainless steel construction
• Lifetime Limited Warranty
• Deep, powerful exhaust tone
• Full bolt-on installation
Technical Specifications
• Brand: Flowmaster
• California Proposition 65: Yes
• CARB Compliant: Yes
• Category: Exhaust
• Clamping Type: Flat Band
• Clamps Included: Yes
• Emission Code: 5
• Exhaust Series: American Thunder
• Exhaust Tip Color: Silver
• Exhaust Tip Connection: Welded
• Exhaust Tip Cut: Angled
• Exhaust Tip Diameter: 3.50 in
• Exhaust Tip Edge: Angle Cut
• Exhaust Tip Finish: Polished
• Exhaust Tip Intercooled: No
• Exhaust Tip Length: 9.50 in
• Exhaust Tip Material: 304 Stainless Steel
• Exhaust Tip Quantity: 4
• Exhaust Tip Resonated: No
• Exhaust Tip Shape: Round
• Exhaust Tip Wall: Single Wall
• Exit Style: Dual Out Rear
• Finish: Natural
• Gasket or Seal Included: No
• Grade Type: Performance
• Hangers Included: Yes
• Heat Shield Included: No
• Inlet Diameter: 2.77 in
• Inlet Type: Clamp-On
• Main Piping Diameter: 3.00 in
• Mount Type: Flanged
• Mounting Bracket Included: No
• Muffler Included: Yes
• Muffler Quantity: 2
• Muffler Series: Super 40 Series
• Muffler Type: Chambered
• Muffler Body Height: 5.00 in
• Muffler Body Length: 13.50 in
• Muffler Body Width: 10.00 in
• Muffler Body Material: 409 Stainless Steel
• Muffler Body Shape: Oval
• Muffler Finish: Black High-Temperature Paint
• Muffler Inlet Connection: Slip-Fit
• Muffler Inlet Inside Diameter: 3.00 in
• Muffler Inlet Outside Diameter: 3.13 in
• Muffler Outlet Connection: Slip-Fit
• Muffler Outlet Quantity: 1
• Pipe Material: 409 Stainless Steel
• Pipe Color: Silver
• Tail Pipe Outlet Outside Diameter: 3.00 in
• Tail Pipe Quantity: 2
• Tip Logo: Embossed
• Type: Cat-Back
• Valve Included: Yes
• Valve Type: Dummy Valve Stands
• California Proposition 65 Chemical Name: Chromium (hexavalent compounds), Nickel (Metallic)
