The stock motor doesn't respond incredibly to basic mods. Since you've already got a cai and catback, a header (HotShot, DC Sport, etc.) would be your next logical move. ROM tunes have turned up the best gains, but you should get your car running right first.
BTW, please use punctuation. Staring at your post for 5 minutes trying to figure out what you said does not put people in a good mood when they finally get to the Quick Reply section.
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