Description
Overview
The Flowmaster American Thunder Cat-back Exhaust System Kit is engineered specifically for the 2015-2023 Dodge Challenger equipped with the 3.6L V6 engine. Built for the driver who wants a moderate exterior tone with a mild, livable interior sound, this bolt-on catback exhaust delivers the power gains and unmistakable presence Flowmaster is known for. If you’ve been searching to shop for exhaust upgrades that combine street manners with genuine performance, this American Thunder system hits the mark.
Constructed from durable 409S stainless steel, the system uses 2.50-inch mandrel-bent tubing to keep flow smooth and unrestricted from front to back. A Scavenger X-pipe crossover ties the dual paths together for a deep, distinctive sound and maximum power, while the dual Super 44 Series mufflers add the aggressive-to-moderate character that defines this performance exhaust.
Key Benefits
This complete exhaust system is designed as a true bolt-on upgrade, arriving with all necessary parts and hardware for installation. The flanged mount type makes fitment straightforward, and every component is engineered to work together as a matched exhaust system rather than a collection of mismatched parts. Tuned rear resonators — chambered on both the rear left and rear right — refine the tone, and stainless steel tips finish the setup with a clean exit within the rear bumper valance.
- American Thunder Series 409S stainless steel construction for lasting durability
- 2.50-inch mandrel-bent tubing with a Scavenger X-pipe crossover for deep sound and maximum power
- Dual Super 44 Series mufflers producing an aggressive/moderate exterior tone with mild interior sound
- Dual 2.50-inch mandrel-bent tailpipes with tuned chambered resonators and stainless steel tips
- Silver pipe finish with black mufflers and no tip logo for a clean, factory-plus look
- CARB (California) compliant, Emission Code 5
Sound & Configuration
The dual-tailpipe layout and Super 44 mufflers give this catback exhaust its signature attitude: aggressive when you’re on the throttle, moderate when you’re cruising, and comfortable inside the cabin. The chambered resonators (6.10 body width x 3.00 body height, with the rear left measuring 11.75 in length) are tuned to complement the Super 44s, delivering a balanced note that stands out among performance exhaust options.
Fitment
This exhaust pipe kit is built exclusively for the 2015-2023 Dodge Challenger with the 3.6L engine. Mufflers are included as part of the kit (Muffler Part Number: Kit Only). Note that a heat shield and tip logo are not included, and the system is CARB compliant for use in California. It carries Flowmaster’s Lifetime Limited Warranty. California Proposition 65 warning applies.
