Civic EG

i have a apexi air and fuel controller, its sitting around not installed in the civic ej1. i also live in san diego, so the question is if the apexi unit is worth installing in a daily driver running 6 psi, the car runs great with no flaws, does any body out there know the pros or cons.

There is no reason to use an AFC because a chipped ECU can be found for around $150 and is a MUCH better option.

You can't tune your timing properly with an AFC. That is the main issue.