I have used Bimmercode app for a few things along with my OBDLink MX..Ive heard here people using Bimmerlink for some things.. Can u all that know tell me what its used for? Is ot another app? How much is it? Can it be used with the OBD device I already have? The only thing I recall people mentioned using it for was to open the flap in the exhaust.Then Im not sure if thats the best way to open it...