EFI -3G hemi

If you don't know what B&G may have done to the PCm you should contact them and see if they can tell you. My guess would be they keep recored of what they did to them by the serial number. You may find the trans has been disabled.

Once the tune is pulled off the PCM, any changes can be easily viewed in CMR.

I've looked at several BG tunes and they are barely considered tunes at all. The few haphazardly made changes can be easily fixed.