I know this has been asked before... I already have e/j/a but want a predator for the diagnoses applications. would running the lowest pred tune with my edge give me problems? I have a stock tranny. If i put the stock tune back in before a trip to the stealer, can they tell it was in? also I have been thinking of trading in my current truck for a 3500 srw cc lb d/a LS if I use the pred on current truck, can I use it on new truck if I do get it? thanks.

I run that stack. Seems like Pred on 40, juice on 1/1, still kills the fuel mileage. My truck feels like it just runs stronger with Pred on 65 w/o juice. Yes you can re-install factory tune, no the dealer can't tell (very easily at least,) and yes you can put it into a different truck, but not two trucks at the same time.