zerothread?id=230520
zerothread/157916
That should help you a little bit that was just a quick search the first is about intakes and the second is how to install the injen CAI if you decide to fab one yourself the latter should help with placement etc. I have a berk technology intake with apexi filter and i love it. worth the money probably not but it gives your car a nice growl and i get better gas mileage if i stay off the pedal. There are a bunch of people on here with custom intakes and a few with intakes from reputable companies. One thing is that if you buy an intake from a company they usually come with directions on how to install them so you dont have to trouble shoot different things.
sorry for the wall of text.