5.9L Cummins Medium Duty RV (1998-2003) #12300

This module improves fuel economy and power for L6-5.9L medium duty RVs, enhancing throttle response and reducing turbo-lag.

• The description claims up to 20% improved fuel economy.
• The description claims up to 25% increase in functional horsepower and torque.
• The description claims significant improvement in throttle response and reduction of turbo-lag.
• The description claims no changes to stock settings.