Here is something you may find interesting. Basically this software will allow you to read, log, edit and flash your OEM Mazda ECU. I just found this software so I don't know much about it. If someone has hands-on experience with this please give us a run down of what this software can do.
ecuEdit • View forum - Discussion
Currently supported:
all MPS (MazdaSpeed) cars - 3,6 < 2008MY
CX7
Mazda 3 NA 1.6, 2.0
Mazda 6 NA 2.0, 2.3