I had these subs in my 2006 Mustang and I switched them out for a Stereo Integrity Mag 12".
Two JL Audio 8W7 subs with custom enclosure. Sealed with fiberglass. The black strips on the bottom are velcro, because I had them velcro'ed down on the trunk. They will come off.
For those with a 2005+ Mustang, the little angle at the bottom of the enclosure is because there's a little hump in the trunk, so it fits kinda nice.
I had 400 watts on each of these and these thing pound! Loud and clear! I listened to everything from Metallica to Lil Wayne. These are really nice subs. Absolutely nothing wrong with them. They are 5 months old. I replaced this with one 12" in a much smaller enclosure because I needed my trunk back.
Here are the pics...
Here are the dimensions. Remember that there's about 1.5" that the subs poke out. They'll need a tad more room for excursion, too.
Here's what they looked like installed in my trunk. There's more room than these pics look like.
Asking for $500 cash. I live in Houston near I-10 and Beltway 8. Will not ship, so I'll meet you somewhere.
Please email me if interested.
bamaster at yahoo dot com