2019 - 2021 L5D Duramax 4500 5500 | HP Tuners

Tuning Benefits: Increase in Mileage Increase in Horsepower Increase in Torque For the tune you will need at least the minimum: NO Unlock Tool required anymore MPVI2 with 6 credits Compatible with: 2019 - 2021 L5D Duramax 4500 5500 Pickup and Cab Chassis / Incomplete Trucks Tune Power Levels: Stock Power 10HP (Heavy Tow) 30HP (Heavy Tow) 50HP (Can tow 12k Lbs and under) 80HP 120HP Switchable Tuning Power Levels: 10-120HP   DSP5 tunes are based off steering wheel controls. This is true switchable tuning where each tune setting has it's own sets of maps. To change positions, simply hold down the cruise cancel button for a few seconds and push up (resume/increase speed) on the cruise to go up in tune levels, down to go down. The glow plug indicator light will blink the amount of times for the tune level you are in.