Looking for a way to increase your Cummins engine's power and performance? Check out our DDP high performance delivery valves! These valves are designed to improve air flow and fuel delivery to your engine, resulting in increased horsepower and torque. Plus, they'll help keep your engine running cooler, with less smoke and emissions. Packaged in a set of six, our delivery valves are a great way to get the most out of your Cummins engine.