I have two 12" audiobahn eternals in a sealed box, in a 4 dr 99 civic. I was wondering what can i do to make it as loud as possible. my trunk isn't very big, so i was wondering would it make it louder to face the subs toward the front of the car instead of facing the trunk? also would a ported box help. I have one hifonics brutus 1600 super class d amp.(i plan one getting another one). anyone got some help? thanks