Borla 21-22 Jeep Wrangler Rubicon 392 6.4L V8 AT 4WD 4DR S-Type Cat-Back Exhaust - Coated BlackThe BORLA team has created a system especially for the 6. 4L Wrangler Rubicon 392 and Moab 392 and Moab 392. This Cat Back system contains BORLA'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