DSP tuning have different power levels based on the truck and the modifications you have done to it. Pricing varies depending on the injector sizing, so when ordering please be sure to pick the option(s) that corresponds to your modifications!
The power level of tunes you will receive for your Duramax will vary based off the modifications to your truck.
Generally, DSP tunes will follow this specific order:
Switch position
1=Stock/Factory (as close to stock as possible),
2=highway/econ
3= tow
4=street
5=race
Unless we notify you differently when sending the tunes, this will be the power levels you receive when ordering a DSP5 tune
