need some help with a question. I use a shop in las vegas to tune my c6 corvette (He uses hp tuners) I was told that the tuner puts in a password so that you can read the tune but it can not be changed except by him. I was also told that if you I go to another tuner that also uses hp tuners he would be able to re flash the ecm and re program. is this correct or do I have to have the password removed before it can be tuned by another shop.