CALIBRATION UPDATE - HPTUNERS hd-cummins Exact power gains will vary

Exact power gains will vary between machines but we will always be able to get the most performance possible out of your current setup

Please confirm you have entered the correct VIN and Transmission before placing the order

All unnecessary derates and shutdowns removed

06-12 trucks have 5 tune levels

Truck will never limit your speed or power for any reason

CALIBRATION UPDATE - HPTUNERS hd-cummins Exact power gains will varyIf you need a tune update then this is what you will need. When you install larger injectors, turbo or pumps then the truck will need to be recalibrated to get the most out of it. Note all the changes you have made and what tune updates you require in the truck mod list. If you need to revert back to stock tune just make a note in the mods list that you just want a copy of your stock file.