My se has reached 170k's and I have been told that my turbo should be due to be replaced, how ever I don't just want to replace it with another stock or equivalent turbo. I plan to keep the car for pretty much as long as i can so i want to put some money into it and eventually get some serious power out of it. I've been doing my home work and reading through here and other forums trying to get my head around things and taking notes, feels like I'm back in school

. Most of it sounds like jibberish to me so far

the more digging I do the more questions i am left with. From my understanding, boost pressure cant really be raised much due to the computer hitting boost cut and that even with a pretty much stock engine setup you really cant go past 150kw with out running into problems.. So what i would like to do is pretty much the bare minimal for now, is it possible to go to a bigger turbo (or better) and run pretty much stock boost settings? I'm talking about replacing the manifold, dump pipe, exhaust, inter-cooler and intake. and just leaving it at that for now?
As for the stuff mentioned above what would be the best to get? I have done allot of looking though nitro dan's build thread, the stuff he puts out is nothing short of art work! does any one know if he sells some of the stuff he makes?
my next question is turbo? I realize it must be asked allot. From looking around, the garret t28 or t25 looks decent to use? I have a mate who can get a hold of some thing through his work for me, i just need to know what would be decent.
Im sorry if these questions have been asked a million times but I'm a little out of my depth and some guidance would be awesome