AutoTuner

AutoTuner is a bench and OBD programming tool for engine and transmission control units. It reads the original file, writes a modified one back, and covers a long list of control unit families, which is why the version and the licence matter as much as the hardware.

Master and slave describe what the tool is allowed to do rather than how well it does it. A master handles its own file encryption and stands alone, while a slave is tied to a master for the files it can work with. Check which a listing covers before ordering.