I am looking into buying a STI. I am in the military and have a little money to play with once re-enlist. I want to get at least another 100 HP out of the STI once i get it. But i do not know what to get. I can turn a wrench but i do not know what parts to buy or who makes good parts. Also i do not know what the advantage of some parts over others. If you could help make me make a list it would be much apprecciative! Also i want to put lambos up front and suicides in the rear who makes good door kits. And also what is the sugnificants of a blowoff valve??
JPW

 

It may help to read through this-
http://forums.nasioc.com/forums/showthread.php?t=533787
Also read through the technical forums here and at NASIOC to get an idea what people are doing.
A blowoff valve is something you do NOT need.

 

That was very useful. Thank you!