Borla 22-23 Nissan Frontier 3.8L V6 2WD/4WD AT S-Type Catback Exhaust - Black Chrome TipsThis 2. 5" diameter into dual 2. 25" BORLA Cat Back system was specifically designed to enhance the power and sound of the Frontier equipped with 3. 8L engine. The system features the classic S Type sound that gives you a powerful performance sound with no drone. It features 2 full Tail Pipes (Not a single tail pipe with dual tips) with single 4" round black chrome on T 304 stainless steel tips on each tail pipe and a dual side exit configuration.