So I now own a 2002 that has 54k on it all bone stock except for a K&N cai. I have a 6lb lower pulley that I want to put on but before I do that I plan on adding an L&S oil separator, cleaning the intercooler, changing the plugs out for some ngk's, doing the turkey pan vacuum line, adding a Diablo MAFia, adding a big o tb or something similar, and getting a tune for it.
My question is is there something else I should be doing as well? Also what kind of hp increase should I be looking at with that stuff done? I do plan one adding some LT headers as well as a better exhaust so tell me what else I should be doing.