I Need More Hp... Pleas Help...

I Need More Power Out Of This 02 Gti. Does Anyone Have Any Suggestions??? . My Goal Is To Get Up Around 350 - 400hp.
I Want To Do This Right The First Time. Does Anyone Make A Kit For This Car? What All Should I Upgrade To Achive My Goal?? Any Information Or Suggestions Would Be Greatly Appriciated...
Thanks,
Guy