hey man whats doing, i have a VY clubsport R8 SE and ive just built my car, got some pretty gud deals as well.
KEY: dont rush, u will be amazed on how much a performance shop like castle hill performance will drop there prices in the comp against other shops, they are making plenty off u, talk them down with other quoets for a lower price, they will come down, promise you that.
I dont think im getting the best deal atm but im not doing to bad for my self, even though i do think i could find cheaper im happy with what im paying for.
The best bang for buck is cam and OTR intake and mafless thats your best bet. Gud power street car. i got a 234/236 cam at .600". and alot of other stuff but dw about that atm, ive built a track car, this is just to get you started. the OTR intake a mafless tune will make a difference so that is a must.
If you have the money the dual valve springs are the way to go but not really nessary.
Now for the HEAD, big thing to think about, will deffently make the difference and u WILL feel it, just a real pain to pay for as well dont forget, it will increase your RWKW but not as much as u really pay for im affraid, HOWEVER, u will hit the HIGH power alot quick, your car can breath and will be more responsive and you u get to max power alot quicker and you will hold that power more until u have to change gears. NOTE: NOT THAT CHEAP and its not reeeeeaaaallllyyyyyyy that necessary but its damn gud to have. and finally, clutch, you NEED a cluth, nothing special like a twin plate and all that crap, just a heavy duty clucth and remember if u get the brass plate clutch, it will grab alot harder and not be as enjoinable to drive, the ceramic clutch is fine, easier to drive as does the job. The clutch kit will give u pressure plate, fly wheel and clutch and that will be about 1800, not cheap but if u start getting into the 300RWKW (up in the 400RWHP) you need to start speeding the money. But dont think about that now man, get the cam and OTR intake first and see how you go, u will be impressed. OH and btw, 4 into one extactors, u will get a noticeable power difference up high and everyone says you loose low down power, well yer u kinda do but man, its so small you dont notice, and when u have cam, it wont matter, u cant notice it so relax about that part.
Hope that helped man. If u want to talk more just give us a yell and we will go more into it.
Clubby for life
have fun