Is there a tuner that i could buy for my cobra that I would be able to use on my 03 6.0 powerstroke and maybe my excursions as well (v10's)? I have read how they lock or something once programmed to a car but if thats the case can you pay a fee to use it on other cars or trucks? I would like to tune 3 or 4 of my cars but to buy 3 or 4 tuners...