I sold my '16 RAM 2500.

My dumbass forgot to get the cables out before the dealer took it. MONITOR ONLY.

I bought it new from T&K performance in 2019, and 3 VIN are slots left.

You'll have to get a new VIN license ($100 depending on where you go) and new tunes.

I don't believe the SD card tunes will work on another VIN.

It will be a little more firework on buyers' end but should save you a chunk of change.