Gibson Performance 617005 Cat-Back Dual Split Exhaust System Fits ChallengerExhaust System Kit Cat Back Dual Split Exhaust System Cat Back Dual Split Exhaust System; Stainless; 2. 5in. Tubing; 4x9x24in. Oval Body; 3in. Offset In Outlet; Use Factory Exhaust Tip; Exit Straight Out Back; SPECIFICATIONS: Exhaust Type: Dual Exit Position: Dual Split Rear Exit Style: Straight Inlet Inside Diameter: 3. 000 in. Material: Stainless Steel Muffler Body Length: 24. 000 in. Muffler Type: Chambered Outlet Outside Diameter: 2. 500 in.