This Flowmaster® Outlaw® Cat-back exhaust system replaces the factory transverse muffler on 2018-2024 Jeep Wrangler Unlimited 4-door models with the 3.6L engine, including the Sahara 3.6L with Hybrid E-torque option. The system relocates the muffler into a position right behind the catalytic converter where it is tucked up into the frame and out of harm's way when navigating rocky terrain. The system is constructed from 409S stainless steel, features a race-proven Outlaw series muffler for an aggressive exterior with a moderate interior sound level in the cab and the single 2.50 in. mandrel-bent stainless steel tailpipe is re-routed to run up and over the rear sway bar and exits up high at the rear bumper to provide maximum clearance for extreme crawling. The system is finished off with a polished 3.00 in. stainless steel tip. Note: Does Not fit 2-door models.