So EFI Live ties the License to the Serial number of the processor on the board.What do they call that? EFILive calls that a stream license.
You an change the VIN all you want and that doesn't matter.
Back in the day they had the option to put 2 processors in the PCM so you could turn ign off, flip a switch and fire it back up and be on your 2nd tune. But you had to license each processor.
EFI LIve Stream license is for the PCM itself. LS1A, LS1B, E38 and such where when you buy the stream license your good for that PCM of any year.
Ive got the LS1B (1999-2007) and E38 (2007.5-2015) Stream license so it has paid for itself several times over since the V2 interface is only good for 221? License.
HPT only has "unlimited license" for say a 2002 Silverado. and it only works for that truck for that year.