Borla 140639 Touring Cat-Back Exhaust System Fits 15-22 ChallengerExhaust System Kit Touring Cat Back Exhaust System Touring Cat Back Exhaust System; 2. 75 in.; No Tips; Uses Factory Valance; Single Split Rear Exit; SPECIFICATIONS: Exhaust Type: Single Exit Position: Rear Exit Style: Straight Inlet Inside Diameter: 2. 750 in. Material: T 304 Stainless Steel Muffler Type: Turbo Outlet Outside Diameter: 2. 750 in. System Type: Cat Back Tail Pipe Diameter: 2. 750 in. Tail Pipe Material: Stainless Steel Tip Diameter: N