Gibson Performance 67402 Cat-Back Dual Split Exhaust System Fits 07-21 TundraExhaust System Kit Cat Back Dual Split Exhaust System Cat Back Dual Split Exhaust System; Stainless; 2. 5in. Tubing; 4x9x18in. Oval Body; 2. 5in. Dual In Dual Outlet; 4in. Polished Slash Cut Tip; Exit Straight Out Back; SPECIFICATIONS: Exhaust Type: Cat Back Exit Position: Straight Out Back Inlet Inside Diameter: 2. 500 in. Material: Stainless Steel Muffler Body Length: 18. 000 in. Tail Pipe Diameter: 4. 000 in. Tip Diameter: 4. 000 in. Tubing