Ratter, would there be any telling signs that the car has been returned to the stock tune before selling, other than putting the car on a dyno? I believe that these mods on a factory tune can cause all sorts of drama, and the flash tuner wasn't sold with the car. Is it correct that the flash tuner is only able to be used elsewhere if the factory tune is loaded back into the car before selling the flash box off? Would hate for the car to be over boosting on a stock tune because the previous owner wanted to make an extra few $$ by selling the flash box separately