[Well at least Fed-Ex brought 1...Twisted's new subs]

Huge pics FTW! Hopefully you don't blow these subs so quick.

[Finished my box BUT.....]

Elecrical tape? Trust me you don't have to worry about that just get a nice bolt and 2 washers

Most of the "stainless" bolts you will find are not the real deal. An easy way to check is with a magnet, real stainless will have little to no Gauss effect(with a magnetic field applied).

[bondo and plastic]

make sure it is really clean, and if you are super worried about it sticking you can drill a few holes in the plastic that the bondo can bind into.

Use the good stuff.

You can also use fiberglass along with your body filler to give it some strength.

[Which subs to get]

Ok, not knocking you or anything just here to help.

Yes, multiply L*W*H in inches and divide by 1728(inches in one foot cubed) to get how many cubic feet your enclosure is. This will not account for bracing or speaker volume. Which way do your speakers face(forward, back, up etc)?

Any pics of your setup?

[Which subs to get]

My enclosure is not a cheap prefab, its a custom built one by a reputable shop around my area.

to find out my enclosures cu. feet. i simply multiply L*W*H?

being that i paid so much to have this box custom made, i would really prefer to keep it....it fits perfect in my trunk and is super solid and well built (ported, 3/4 MDF)

Ok, not knocking you or anything just here to help.

Yes, multiply L*W*H in inches and divide by 1728(inches in one foot cubed) to get how many cubic feet your enclosure is. This will not account for bracing or speaker volume. Which way do your speakers face(forward, back, up etc)?

[Which subs to get]

ive already got the box for the AQ, and the kicker box is a generic kicker one (http://cgi.ebay.com/NEW-2-KICKER-DS12L7-L7-12-Car-Subwoofers-Subs-BOX_W0QQitemZ390079742880QQcmdZViewItemQQptZCar_Subwoofers_Enclosures?hash=item5ad29083a0)

and for amps, both are new and same price im looking at eD 9.1 (1200 RMS) and kicker zx1000.1 (birthsheets usually rate about 1200 RMS though)

Prefab boxes and being loud, normally do not go together. My formula for building a loud system is as follows...

Decide what you going after, SPL, SQ or a little of both.

Choose subwoofer(s) that best fit your above choice(compare there TS specs to determine compatibility)

Determine which enclosure would best meet your end goal. For spl, ported, 4th, 6th, 8th order bp or for all around sql performance a t line box works well.

Your vehicle is part of the enclosure, build it(your enclosure) as such.

Build the right box for your car and the bass will come no matter what sub you use.

Normally tiny enclosures will produce tiny results.

Keep panel resonance down to a minimum to achieve a better tl score.

My last spl build I used 500lbs. of concrete and 1000lbs. of mdf, 2x4's, screws, glue etc.

[Which subs to get]

the AQ i may get used for $160 (hes asking like 200)

Leaving over $300 for an amp, which a kick ZX1000.1 is only like $200 used on ebay, leaving $100 for wires. I already have a box, and the extra battery.....

So overall this is the setup im looking at:

-ZX1000 kicker amp OR Elemental designs nine.1

-12" Audioque HDC3

-~2cubic foot box ported

-4 gauge wire maybe 0 or 1/0

will that be loud in a honda sedan? or would it be better to sell my current stuff and have a $700 budget, to buy a $500 kicker setup with $200-$300 for an amp (ZX1500.1)

Either the AQ or Kicker. Both will be loud if you build the right box for your vehicle.