right now I'm in the beginning stages of upgrading my car... exhaust, fuel pump, injectors, intercooler, BOV... and Im running into so many issues because we are in CA and there are so many laws that I have to break to make the car perform better. To start Im having trouble with the exhaust. Since there is a pre-cat on the downpipe I cant replace it. what have you guys done? Also, is it legal to replace the intercooler and switch to a hardpipe kit with a BOV? As of now Im thinking about just pulling the stock exhaust off completely and replacing it with a nice 3" and then come smog day put in the stocker. Are there any other things I should worry about... cams, injectors,etc.?? Thanks