Flow master's American Thunder Cat-back exhaust system for the 2015-2016 Dodge Charger R/T with the 5. 7L V8 engine and 2015-2018 Chrysler 300 with 5. 7L V8 engine is perfect for the person looking for an aggressive exterior and interior sound level with all of the performance benefits that you would expect from Flow master. This bolt-on 409S stainless steel system features a pair of Super 44 Series mufflers for a deep, aggressive sound. The system uses a 2. 50 inch Scavenger Series X-Pipe and mandrel bent tubing for maximum performance and then is finished off with 2. 50 inch stainless steel tips that exit within the rear bumper valence. The exhaust system is covered by Flow master's Lifetime Limited . Designed for an easy fit, this system includes all necessary parts and hardware for installation.