Gibson Performance 5637 Cat-Back Dual Extreme ExhaustExhaust System Kit Cat Back Dual Extreme Exhaust Cat Back Dual Extreme Exhaust; Aluminized; 2. 25in. Tubing; 4x9x18in. Oval Body; 3in. Center In 2. 25in. Dual Outlet; 3. 5in. Slash Cut Tip; Exit Behind Each Rear Tire; SPECIFICATIONS: Exhaust Type: Dual Exit Position: Dual Split Rear Behind Rear Tires Exit Style: Straight Inlet Inside Diameter: 2. 250 in. Material: Aluminized Muffler Body Length: 18. 000 in. Muffler Type: Chambered Outlet Outside