Flowmaster's American Thunder Cat-back exhaust system for the 2018 Jeep Wrangler JL with the 3.6L V6 is perfect for the person looking for a moderate to aggressive exterior and mild interior exhaust tone, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR (Dual Out Rear) emissions-legal system features 2.50 inch mandrel bent inlet pipes, a stainless steel 80 Series cross-flow muffler and dual 2.50 inch mandrel bent tailpipes. The system finishes with large 4.00 inch black ceramic coated Flowmaster stainless steel tips for a stealthy modern look. The system is designed for an easy fit and includes all necessary parts and hardware for installation.