Borla 21-22 Jeep Wrangler Rubicon 392 6.4L V8 AT 4WD 4DR S-Type Cat-Back Exhaust (Stainless)The BORLA team has created a system especially for the 6. 4L Wrangler Rubicon 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 sound delivers