Raptorman

How do you suggest I do that? The port can't fit on the sides of the box, only along the top. And I can get a few more inches of height if need be.

Well what do you suggest? Go sealed? Or would a slightly smaller-than-it-should-be ported box be better? The pair of subs has a 6000 watt total max, and 3400 watt total RMS. Given that my amp is 4000 and will be at 2-ohms they will be underpowered.

Just recently got my first car and have installed my old set of 15's in it, but I sold that and am ordering new stuff. I have two Power Acoustik 15" MOFO 152x's on the way along with a SoundStorm SSL 4000 watt monoblock amp. Using a 0 guage wiring kit. This is going in the trunk of a 2000 Nissan Altima SE, and my trunk dimensions are 32" wide, 17" high, and 25"(Give or take) deep . And I want to go ported and have a tuning of around 33hz. The subs would be firing towards the license plate and the port I'm thinking should be at the top back. But what I need to figure out is the port dimensions and whatnot needed to get 33hz. Sorry I'm a little noobish with this, the help is appreciated.