The Juice module is an add-on Engine Control Module for the Duramax engine that offers additional features not available with the factory setup. As an add-on ECM, it uses all the factory data and then enhances the factory settings to optimize your truck's performance.

The Juice features engine temperature monitoring and power increases from the Juice module as engine reaches operating temperature. With four (including stock) selectable power levels via an in-cab position switch, the Juice module offers a large power increase over stock throughout the RPR range, but the power is more noticeable in the midrange RPMs, which greatly improves driveability and towing performance. Transmission downshifting is greatly reduced, especially while passing or towing.

The Juice also regulates power delivery and timing based on engine temperature. This means that while the engine temperature is below 130 degrees Fahrenheit, no additional fueling or timing is delivered. Once it reach 130 degrees, the module begins modifying timing and delivering fuel at 50% of the calculated additional fuel, and the percentage increases as the engine temperature increases, until at full engine temperature the Juice delivers 100% of the calculated additional fuel.

The Juice alone provides the following power gains with toggle switch:
Level 1: 30 Horsepower - 60 Foot Pounds of Torque
Level 2: 40 Horsepower - 80 Foot Pounds of Torque
Level 3: 50 Horsepower - 95 Foot Pounds of Torque

When the Juice module is used without an Attitude monitor, the Juice will NOT read EGTs.