Other than the plugs on the
ECU loom being completely different. There are updates sensors the most important one being the AFM.
You know there are quite a few Power FCs floating around for sale here and on REXNET. so that would probably be your best bet for a
ECU to tune on a my99/00. $700 or so for second hand PFC (cheaper without a hand controller) and another $400 for a tune... thats mot much more than the VERSO reflash ($990)