generally ported will significantly increase the output of your subs. I'm not sure about which way to fire it, I would test it and see...depending on what type of ports you are using(round, square or rectangle) and if they come out the same side of the box as the woofers are mounted to would determine which way to place the box in the trunk. I know with the solo baric vented boxes from kicker they show on their website to mount the sub firing towards the side of the trunk with the vent towards the rear.
Dad, Electrical Engineer, MBA
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