I'm debating if a 10W7 will be able to fit in my 94 RX-7. I will most likely build a custom fiberglass sealed box, but I don't want it to take up the whole trunk. What kind of box do you have in your trunk and about how much air space does it give your sub?

 

I want to put 2 12W7's but i have no clue how im gona fit them in yet if you come across anything dont be shy to let me know about it.

 

Check my resent post here, but I fit almost 3 cubes in the back for my 15". If you use the rear tire area, you could get a fair amount without taking up internal space.