The BORLA team has created a system especially for the 6.4L Wrangler Rubicon 392. This Cat-Backâ„¢ system contains BORLAÂ'S patented SwitchFire technology which eliminates the turbulent center intersection of a standard X-Pipe. The SwitchFire design truly blends the combustion pulses from both sides of the engine for improved performance and a custom sound. The system is engineered for performance and has our classic S-Type sound delivers which delivers an aggressive yet balanced sound with a deep tone and no drone. This exhaust system features a 2.75" inlet that flows into 3" pipes and exits via dual 4" round black coated T-304 stainless steel exhaust tips on each side. The entire muffler assembly is coated black with high temperature finish. An uncoated system with polished T-304 stainless steel tips is also available. The system features Dual-Mode valves so you can customize the sound of your vehicle. T-304 stainless steel construction of the system provides additional durability over the stock exhaust. Ultra-smooth mandrel bends ensure maximum flow & power and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Give your Bronco a boost in performance and sound bolt on a BORLAÂ. All BORLA Cat-Backâ„¢ and Axle-Back systems are made in the USA and are covered by our Million-Mile warranty. System Features: Cat-Backâ„¢ Exhaust System S-Type Sound Level 2.75" Inlet Dual 2.5" Tailpipes No-Drone 4" Round Black Coated T-304 Stainless Steel Tips Million Mile Warranty System Ships In 2 Boxes.