A deviation from the current discussion, but today (in the spirit of this thread!) my fg mk2 Ute went in for a tune :
spun up 223kw ate as a baseline, first retune 252rwkw and 711nM, however tuna mentioned when he looked at the data the factory injectors were at 99.2%, which he felt to be pushing them way too far, so final result pulling it back a bit was 241kw and 648nM,
From what I understand the factory fuel system can often get to around 275 reliably, but I suppose there is always going to be variation!
I think at this stage I’ll sit on it for a while, and when it starts to feel slow again, take another (considerably more expensive) leap!