i dont know about that. im sure someone with more experience and knowledge will chime in. ive only had trunk systems so im not sure whats best in a SUV setup. but from what i've read sub firing up and port firing to the hatch is louder.
tman what kind of jeep is this for cause i got a Cherokee sport and both my sub and port is facing up it does pretty nice but i dont get to play around with it much cause i work out of my jeep too