I am going to set up a little turbo kit on my 2.2 L to produce low boost just for the fun of it till it blows or I have an STI motor to put in. My question is I know that a wrx turbo wont allow you to make under 8psi. What will an STI turbo allow you to do? I know it is probably more than that but I am just wondering. Would you guys recommend setting up a td05 or a td04 on my car. It shouldnt matter as long as the up pipe is made for it correct?