Yep. Mine was just recently stage 2+ flashed at 118K miles. It's not the mileage that's important, but the physical condition and making sure all the sensors and ancillaries are healthy, and obviously the turbo.
If in doubt, run a compression test before spending money on a map, and get it fault coded first to ensure the engine stands the best chance of making good numbers on the day, but R-Tech will point out any issues if there are any, but obviously you don't want to travel all that way and then go home again with no map because of a split diverter valve etc.