I've been busy for the last few weekends slowly installed engine parts on my 06 STi and I haven't got it tuned just yet(It's booked in). But before the mods the peak reading on the boost gauge was 1.1 Bar....just checked it then and it reads 1.4 Bar.

I have been trying to drive it gently(Low revs and never floor it) but I didn't realise it would overshoot that much!!! I think I'll be driving off boost till the tune.