I have an 04 G35 Coupe. I was wondering if a 12" Resonant Engineering XXX Sub could possibly fit on passenger or driver side of the trunk in a custom fiberglass box, and if there is anyone or anywhere that would be able to make that? If not, anyone have any ideas on how i could make or build the box?
Here is the link to the specs that the 12" needs to be.
http://www.reaudio.com/specs.html#sp_xxx
0.85 cubic or 1.1 cubic for optimal performance
w/ a 12.75" mounting depth
Thanks for the help guys!

 

Yep, totally possible. Use the same idea as the 4080 style boxes, but you'll have to extend them out further and also angle the fitment to clear the 12" sub. The 4080 box is ~.8 cu ft so extending it ~3" should get you enough airspace