Any Advice?

I was wondering if i should go bandpass or regular box in my trunk.

A bandpass box will be louder, but a sealed box will sound better, your choice :) and welcome to AF :wave:

sealed, bandpass is better for hatches

bandpass will hit harder, but sealed will sound nicer, forget ports all together. i have a crx, which is a hatch, and i like my sealed box over the full-range, ported, and bandpass boxes i had.