stock with $300 in the bank > *

if you have a seriously modded engine that requires something special then maybe some advice would be helpful for you
but we have no clue what work has been done to your engine, and therefore no idea what benefits would be made with what kind of intake

also unless you have invested serious money into a NA build a cai isnt going to do shit for you, maybe +5hp, a little throttle response, and some added noise thats annoying as fuck

if you have some other applicable information let us know
otherwise i recomend you search for one of the thousands of threads that have covered this topic and read up on that