Gibson Performance 619016 Cat-Back Dual Exhaust System Fits 15-17 MustangExhaust System Kit Cat Back Dual Exhaust System Cat Back Dual Exhaust System; Stainless; 2. 5 in. Tubing; Incl. Connecting Pipes Mufflers Hardware; Dual Exit; SPECIFICATIONS: Exhaust Type: Dual Exit Position: Straight Out Back Exit Style: Straight Inlet Inside Diameter: 2. 500 in. Material: Stainless Steel Muffler Type: Chambered Outlet Outside Diameter: 2. 500 in. System Type: Cat Back Tail Pipe Diameter: 2. 500 in. Tail Pipe Material: Stainless