Gibson Performance 9015 Cat-Back Dual Extreme Exhaust Fits 11-14 F-150Exhaust System Kit Cat Back Dual Extreme Exhaust Cat Back Dual Extreme Exhaust; Aluminized; 2. 5in. Tubing; 7in. Rd Body; 3in. Center In 2. 5 in. Dual Outlet; L 19in.; 3. 5in. Round Slash Cut Tip; Exits Behind Rear Tire; SPECIFICATIONS: Exhaust Type: Dual Exit Style: Turn Out Inlet Inside Diameter: 3. 000 in. Material: Aluminized Muffler Body Length: 19. 000 in. Muffler Type: Chambered Outlet Outside Diameter: 3. 000 in. System Type: Cat Back Tail