4" DPF CAT UREA Delete Race Pipe (Aluminized) (No Bungs) (Slip Fit Exhaust) 2013-2016 Dodge 6.7L Cummins Diesel 2500 3500 Pickup (Exhaust Will NOT Fit Cab and Chassis Model) *DOES NOT FIT REGULAR CAB MODELS!* 4" Diameter Exhaust Pipe. Mandrel Bent Aluminized Exhaust. Straight Pipe System. Produces Aggressive Performance Sound. Increases Horsepower. Increases Torque. Increases Fuel Efficiency. Bolt-On kit w/ All Necessary Pieces.Exhaust Performance