Finally installed it and had a play.
Refused to pull over 1.05 bar no matter what the BCS duty cycle was set to, few chats with Scott, a rummage through his selection of Subaru bits, quick change of restrictor pill and 1.2 achieved.
Now it's clutch, rocker cover gaskets, headliner, fit newly painted inlet manifold, finish refurbing and fit sti suspension, sort sticky brake caliper etc. etc. etc.......