Not replied to your email yet, but I can tell you now due to the rpm enrichment on the K11s e-manage is not a nice solution. Its much better to get the ecu remapped.
BTW your power is 'at the hubs' not at wheels. You would get less at the wheels due to tyre loss. So probably around 68-70 ish at wheels.
Blue isnt where the ecu takes over. The ecu is always in control, and thinks it is doing right (obviously due to your mods its not). By the way yours is no different to every other K11 with these mods. They all do this but very few are aware about it, and for a full throttle power run that entire graph is too lean, including the blue bit, in fact even if it was in the green bit, that is still too lean. Theoretical max power is at 12.8:1 in reality its usually around 11.8-12.5. This does of course mean there is a huge area for improvement. I did something very similar this weekend on a friends P11 primera. I fitted a GTI-R ecu and remapped it to suit his car. It really did make a good difference.