Need Some Opinions

[lowriderram_95 10+ year member]

I've decided on getting a 15" fi bl and now I need to figure out how big of a box to put it in and what to tune it to. It will be goin in an 06 malibu maxx and will be powered by a kx1200. I want to use 4" aero's for the port and do a sub up port back box since I've got a hatchback. I was thinkin about a 4.5 cube box before displacement. Any opinions?

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[Buck 5,000+ posts]

Do the box 4.5 cubes with all displacements included, and use a 6" aero. I would tune to 34 hz.

 

[lowriderram_95 10+ year member]

just 1 6" port?