BUILT TO FLOW, BUILT TO LAST
A 4″ race pipe engineered for the 2013-2022 Dodge 3500/4500/5500 Cab & Chassis 6.7L Cummins — mandrel-bent durable aluminized steel for maximum, unrestricted flow on your competition build. Bigger diameter, bigger tone, and the durability to take a full season of hard use.