I know I know - I mean that if live mapping is possible, then even if we are limited by EEC IV sensors and actuators we can still make some improvements - fre exhaust and intake, head porting/polishing, the same with manifolds, uprated hybrid turbo with ported/polished insides, all this can be used to full extent if we live map it.
I know it's kind of stupid compered to the power one could get from old YBT with this sort of work but still it may be interesting option if e.g. I have to rebuild engine if future because of wear I could do those things as byproduct.