That sounds possible! Im not sure to be honest with you. My buddy worked at the dealer as a technician and he said it was hard to tell if someone had a tuner in there truck or notwhat do you mean look through the computer???This is what i've herd......The tuner flashes the stock tune when the new tuner is installed, when the truck need to go bck to the dealer for warrenty repair and you replace with the stock tune, the computer starts its logging over again, so when the dealer looks at the computer and there are hardly any logs then he knows you had a programer?? true? Do you get how im explaining it?