Then you are good to go.....Not a good plan to have it on the car when going in for an update. If they have an issue loading the software they might decide to look around in the ECU box & mark your car with a mod.
Once they are done plug it in & enjoy, it will not effect your new software.
2013 135is Cab JB4/ISO - 2011 335is JB4/ISO/BMS Flash - 2009 V-Star
2009 Ford Expedition EL 4X4 - 2003 Xterra 4X4 - 1998 Ranger 4X4 - FFR Cobra MK-IV work in progress