I'm in Wellington, yea vr4 front mount, 450cc injectors (at the moment) Bosch wideband O2, plus other bits and pieces and only running about 13psi currently, luckily I have a mate who is a mechanic/gear box mechanic for anything that's above my head.
To be honest I have given my car absolute death at Manfield race track and its never missed a beat no matter how many times I've sat on the limiter and/or abused it, if it did pop it would give me a reason to strip the whole car down and start again, cos when I bought the car things had been half done.
Side note: it's mainly a track car comes out in the weekend sometimes and saving $$ for a cage