Gibson Performance 7101 Cat-Back Dual Sport Exhaust System Fits 07-21 TundraExhaust System Kit Cat Back Dual Sport Exhaust System Cat Back Dual Sport Exhaust System; Aluminized; 2. 5in. Tubing; 4x9x18in. Oval Body; 2. 5in. Dual In 2. 5 in. Dual Outlet; 4 in. Polished Slash Cut Tip; Exit Behind Rear Tire; SPECIFICATIONS: Exhaust Type: Dual Exit Position: Dual Rear Exit Style: Straight Inlet Inside Diameter: 2. 500 in. Material: Aluminized Muffler Body Length: 18. 000 in. Muffler Type: Chambered Outlet Outside Diameter: 2. 500