The Smarty Is Vin # Locked, So If All They Done Is Reflash With A Standard Flash File Or Flash It With An Updated Flash File It Should Still Work. Just For Safety You Should Always Set The Tuner Back To Stock Before Taking It To The Dealer.
Go To Mads Electronics And Download The R14me Or The R15me File. Either One Will Work Well With The 6.7. The R15me Is The Latest File, Supposed To Work With The Newest Flash.
Thanks, got the newest software downloaded smarty right now. I guess it is just the trucks with are built after march of 09 and the trucks that have got a new ecm after then, that the smarty will not work on.