Gibson Performance 9131 Cat-Back Dual Extreme ExhaustExhaust System Kit Cat Back Dual Extreme Exhaust Cat Back Dual Extreme Exhaust; Aluminized; 2. 5in. Tubing; 3in. Center In 2. 5in. Dual Outlet; L 24in.; 4 in. Tip w 2. 5in. Inlet 4in. Outlet L 12in.; Exit Behind Rear Tire; SPECIFICATIONS: Clamps Included: Yes Exhaust Type: Dual Exit Position: Dual Split Rear Behind Rear Tires Exit Style: Straight Inlet Inside Diameter: 2. 500 in. Main Piping Diameter: 2. 500 in. Material: Aluminized Mounting Bracket