I contacted pogea as they seem to be very professional. They say nobody (except themselves) can remap the euro6 ecu for the moment except with a piggy box which is not good for extreme conversions
I asked for their price but they are not able to give me one every time they try to sell me a 220 hp version so it'snot clear what their real motives are.
Another tuner in belgium conferms that the piggy pack system is not good for 300 hp, same as Pogea says. I wanted to go to G tech but now i'm unsure what to do since they use a piggy pack
Did anyone go to TMC for a 280 or higher conversion? I ordered my wheels and tarox 10 pots with them and they seem to be reliable and have a clear price policy. So i could box my engine and send it to TMC for tuning

Kimosubi. I chatted with him he mostly has g tech stuff but he says 300 hp is stable actually all the problems i heard were driveshafts and minor problems no engine failure no gearbox problems so I am confident it can work