Hmm, be interesting to see what my old barge does then as 230bhp with the bits just nailed on sounds appealing
I should add that if you want to just nail them on, you probably cant use the VXR injectors.
The ECU only has so much adaption for fuelling, around 15%, so the injectors and MAF need to be fairly closely matched if you want to keep within the ECU's adaption limits.
I'm using C20LET injectors, which are ~320cc with a 3 bar regulator. As it happens the C20LETs on 3bar is almost exactly the same increase over stock as is the change from a stock to VR6 MAF, which means everything lines up nicely. You could probably also use Z20LET injectors, which are also ~320cc. VXR/Z20LEH injectors are just too much larger than stock, the ECU would never be able to adapt to them without a tune explicitly programming the injector size.
The other issue with running the car like this, is the ignition timing ends up a bit over advanced, as the ECU essentially cant "see" the additional airflow and power. I stick to only ever using super unleaded, and the ECU's knock control seems to keep things in check. It needs very careful checking though, especially if you plan to use the car hard, ideally it wants a run up on a dyno to check the fuelling and some logging doing to make sure ignition is sensible. You'll also want to use an MBC or similar, becuase the ECU's boost control will be all over the place. I just run mine on actuator pressure, which is around 10-12psi. Not sure what actuator your turbo has though.
Mines essentially a temporary measure until i get it tuned, and i'm not too worried as the car doesnt get driven that hard. It has been like that for over 6 months though.