I guess this question is for Allen.

My truck is a 99 with 5.3 motor.

It has been stated here that there is an advantage in switching to the 2002 PCM. So, if I do that and buy HP Tuner software and also buy a Nelson tune, will I have to use my 2 vehicle selections for HP Tuner as being 99 5.3 and 02 5.3?

Or is that taken care of in the new tune of the 02 PCM?