Well, talked with Torrie, and apart from pulling the strategy code, my X3 won't be able to tell if the SHO is tuned. We would need the original programming device (if any) associated with this particular SHO. Unfortunately, you'd need a tuning device and the stock file to "return to stock". If you can get the selling dealer to foot the bill, that would be your best option if you are not keen on a tune right away.