This is a heavy-duty, bolt-on replacement HPOP that benefits all setups - even stock trucks with stock programming will see and feel a difference. You will experience more pulling power, better fuel economy, horsepower increase (increase changes based on injector size), and quicker startups. The Adrenaline has been on the market for nearly 15 years and is tried and true by the 7.3L community. Our units are upgraded with custom internals and design changes to get the most out of a single housing pump while improving reliability over the stock unit.