Bigger turbo, injectors and fuel pump, are all supporting mods, alone they will not give you more power. You will need to increase the boost. If you are at .5 bar, you should be able to push a bit more power from your current system.
But the others are correct, this information is plentiful on line! Do some searching! Check out DSMTuners.com, I believe that your RVR comes with the same turbo as what we have on our automatic 1G cars. So you can follow thier path of modifications.
thanks a lot