Cummins Performance Modules

Diesel Modules performance modules for Cummins engines are built for owners who want sharper throttle response, less turbo lag and better real-world mileage without flashing the factory ECM. Each module is matched to a specific engine and model-year range, so the harness lines up with the factory sensor connectors on your truck. Installation happens under the hood with OEM-style plugs. There is no laptop session, no tuning file and no change to stock settings.

This collection covers the Ram 2500 and 3500 with the 5.9L and 6.7L Cummins, from the 1998-2002 VP44 trucks through the current 6.7L with DEF, plus the Nissan Titan XD with the 5.0L Cummins V8. Every listing shows the exact years it fits, and the 6.7L pages note which models are not for Cab & Chassis trucks. Ram 4500/5500 Cab & Chassis owners and RV owners should use the Medium-Duty & RV collection instead.

Not sure which module fits? Use the Year / Engine search at the top of the page, or call or text us with your year and engine before you order. The three-position switch on each module lets you choose a power level that suits how you drive, from daily commuting to towing.