I have a 03 civic ex all I got now is a catback and a cold air what should I do next. I was thinking somewhere along the lines of the ECU. I've heard good and bad things about a chip and good and bad things about a stand alone. This is my everyday car so I don't want to go crazy with it but what do ya'll think I should do?

 

you dont have enough dont ot it to merrit chipping or swapping anything.