compare too? HMM? I've owned some
RF power 15's (2003, blow through ranger! 12ft^3 box),
RFHX2 15's
CV strokers(2003 blow through dakota, 12ft^3 box),
Kicker L715's, (in a blow through w/orion 2400d's- S10),
Orion HCCA's(4 walled off in a camaro with Orion 2400d's)...
ICON D2 has a mounting depth of 6.00", should be a great SQ sub for you, check them out
http://www.soundsolutionsaudio.com/products/icon/icon10.html
just showing another option for you
well basically you'll never get the room you want out of that hatch (hump area) unless you build something crazy big that goes over the gas tank area, but then you're getting into to much weight as well. So my conclusion on this popular question was sealed.
i've personally owned about 6 f-bodies over the years and built every type of box imaginable for this car, and the sealed hatch box works best just because of all the funky box lines.
check out the ICON 12", sounds perfect for what you looking for...
http://www.soundsolutionsaudio.com/products/icon/
also, FI Q, SS RLP-12 to name a few