I think I understand what happens once OBD-II port is connected is it: The OBD-II Port that you send out puts a base custom tune onto the car, then once I have collected some logs then I can send it back to you to get a more refined tune to suit my drivin

Very close. How remote tuning works: Fill out a form to establish your requirements Wait for the programmer to arrive Once arrived install software and drivers for the programmer Read your current tunes from your vehicle (one for the engine and transmission) Email these across and we'll email you a custom base tune shortly afterward Log how the car is running with the programmer and various conditions and report any other changes that you would like to take place and email back to us With this info we'll email you out another tune if necessary We repeat the last two steps until both parties are happy.