Borla 140626 Touring Cat-Back Exhaust System Fits 15-22 ChallengerExhaust System Kit Touring Cat Back Exhaust System Touring Cat Back Exhaust System; 2. 5 in.; Incl. Connecting Pipes Mufflers Hardware 4 in. x 2. 5 in. Dual Rectangle Angle Cut Tips; Dual Split Rear Exit; SPECIFICATIONS: Exhaust Type: Dual Exit Position: Dual Split Rear Exit Style: Straight Inlet Inside Diameter: 2. 500 in. Material: T 304 Stainless Steel Muffler Type: Turbo Outlet Outside Diameter: 2. 500 in. System Type: Cat Back Tail Pipe Diameter: