Gibson Performance 9523 Cat-Back Dual Split Exhaust System Fits F-150 Mark LTExhaust System Kit Cat Back Dual Split Exhaust System Cat Back Dual Split Exhaust System; Aluminized; 2. 5in. Tubing; 7in. Rd Body; 3in. In 2. 5 in. Dual Outlet; L 24in.; 3. 5in. Polished Slash Cut Tip; Exit Straight Out Back; SPECIFICATIONS: Exhaust Type: Dual Exit Position: Split Rear Exit Style: Straight Inlet Inside Diameter: 3. 000 in. Material: Aluminized Muffler Body Length: 24. 000 in. Muffler Type: Chambered Outlet Outside Diameter: 2. 500