NSFW, thanks. I've got a 2001 411 ecu from a chevy blazer. I tried flashing it as a clone using ls droid. Seems to work correctly. However the vin didnt transfer with it. Reading the 411 ecu with ls droid shows the 9373372 os, so maybe I just need to change the vin, so it works with vats. I'm really just looking to having a clone so I can just swap it out and not change the original in the car. I'm really just looking to change shift points and pressures after a rear gear change. I realize to most it seems backwards to take the 411 ecu to an earlier os, but for my purposes it seems easier. Do you know if the newer ecu has the same pin connections as the earlier ecu and only the harness is different. That's what I'm hoping for. Thanks again.