from the diablo website.....
The DeltaChip was created with one thing in mind, POWER!
10-25% increase in horsepower and torque, depending on application. The DeltaChip’s additional power makes itself noticeable immediately with an increase in power that starts in the low RPMs and builds into a frenzy at the high RPMs.
not sure what your truck dynos at now, but it could be as much as a 25% increase.......maybe not quite that much, but for $80, that is a nice increase for a little money.