They have to be 2Ce's. I know my 2Ce's are even too old. There was a cut off in the serial numbers of 2Ce's for the upgrade. It used to list the info on their web site. It is gone so I assume that they don't do the update now. You will have to make a call to your dealer to find out. I wouldn't call the factory!
Vandy 2 signature upgrade question
Need some help...how far back can you go in the Vandy 2 line and still ship them to give them the "signature" treatment? Also, has anyone done this? What were the results?