Stick a de-cat downpipe, panel filter, fuel pump, get it remapped and it should do c330bhp on the standard VF28.

www.p1woc.co.uk is the website for them, IIRC the main issues with the engines were an unmapped JDM ecu and a heath robinson in-tank broquette designed to raise the Optimax fuel to the correct 101RON that the car was mapped for... and there is an issue with the shells used in the engines, most rebuilds will address this, however it's worth checking out any paperwork closely if you're looking at one.

FWIW, I wouldn't buy one that hadn't had a rebuild since IMO they are a ticking time bomb as standard.


Cheers,
Grant