I said that the ecu can accomidate for the 9.7 compression rotors of an S5 engine over the stock 9.4 of an s4 computer setting, not that it can run the electric OMP which obviously it cannot. Electric omp's are crap anyway, you'll get stranded on the side of the road if it breaks cause of LIMP mode.

Also It doesn't work that easy either when switching between series. You can't just plug up a S5 ecu into an S4 body harness. You have to either swap out the body harness and cluster for S5 ones, OR do some serious rewiring of the body harness plug that goes into the ecu.