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jb4 on n54 had CAN bus capabilities that tapped into all variables and parameters of the engine so it could see what engine temp was. Thats what allowed you to change maps with volume/track buttons on steering wheel on e9x cars. on the n55 it is a different language I believe? So it will be a while for can features to be available. Right now its more of a set it and thats it tune.
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