Flowmaster's American Thunder Cat-back exhaust system for the 2015-2016 Dodge Challenger R/T is perfect for the person looking for an aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on Dual Out Rear emissions-legal system for cars with the 5.7L engine features a pair of Super 40 Series mufflers, and dual mandrel bent 2.50 in. tailpipes for maximum performance. The system is built out of 409S stainless steel and utilizes the original factory exhaust tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.