If you get the full test you will need to remove ecu/inj/turbo & bc. If the pump is just an in tank you will be fine. You might even be ok with a big one in the boot or similar, I never had my boot opened the 4 times I have been.
They will see the colour of you injectors is not normal and you will fail, they will see your shiny HKS heat shield and turbo (yeah they look that closely) and you will fail, they will check your ecu and you will fail.
To answer your question R34 NRG you roll up into a little booth and they visually inspect the car (engine bay, exhaust setup, etc) they will take notes on your setup incase you re-offend. They then stick a probe up your exhaust and do some emission testing (not 100% sure what they do here) I never had a problem with this section.
Then you move you car out to an open space where they test noise. Basically placing a microphone about 1.5m away from the exhasut tip and reving your car to 3/4 (from memory, might be more or less) of the rev range. You must be under 90db.
They then slap a green defect like sticker on if you fail and tell you you have 28 days to fix it otherwise your rego will be suspended, you cant sell the car in this time either (but it can be driven any time).
If you pass you go on your way and pray you never return
I would advise you are very polite and dont try to lie to them, they really know their sh*t.