Flowmaster's American Thunder Cat-back "Active" exhaust system for the 2015-2018 Dodge Challenger SRT 392, R/T Scat Pack models with 6.4L engine, as well as SRT Hellcat with the 6.2L engine. This exhaust system is for all models with the factory "Active Exhaust" option and is perfect for the person looking for a very aggressive exterior sound level when hard on the gas, while maintaining a moderate exterior and interior sound while cruising. This bolt-on 409S stainless steel system features a dual 3.00" Scavenger X-pipe assembly that runs into a pair of specially built Super 40 Series mufflers and uses 3.00" mandrel bent tailpipes with built-in active exhaust valves and is finished off with 3.50" quad stainless steel embossed tips. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.