Ok. A little insight of the problem in hand.
Myself and a mate replaced the stock TD04 on my '02 bugeye with the same turbo, just less K's as the previous was creating a large whine, and as I suspected, yes, it was pretty much screwed.
However after replacing everything, getting everything back in, and starting the car up and going for a run, it's only running 8psi, substantially lower than stock boost.
I'm not entirely sure of what the problem is, so I thought I would ask other's opinions.
I used the stock gaskets, and as far as I know, there aren't any leaks coming from them.
I've tried resetting the ECU thinking the car could be in limp mode, however to no avail.
Any help is appreciated.