I've been here b4 m8,i modified my sti for me!not to be quicker than someone or make more bhp than an.other,and like you,didnt spend £20k plus doing it!But hey thats life,people prove on here everyday that you dont have to spend fortunes for the best gains,and good advice from people who have PROVEN their work(Andy Forrest being one of them) giving you no bull,and not trying to sell you something because it has gucci on it,with no real benefits.
Enjoy your car for you,and let the rest get on with it!
Gav