View Full Version : 2 "15 MTs in a Grand Prix trunk

01-02-2007, 09:03 PM
Well I have 2 MTs that have been sitting in my garage for almost 6 months. One is slightly used, in a 4.5 cube box. The other is BNIB but has a damaged basket because it was dropped by the guy i bought it from.
This weekend when I took my Premiers out of my car to see if I could get the one MT in and failed, I decided I was going to go ahead and build a box for both of them. The box will have to be assembled in the trunk. I figured I would build it port and subs rear facing. I will run both of them off my amp (see sig) at .5 ohm until I can find another one. What do you guys think? How big of a task will this be? Who else has assembled a box inside the trunk before?

01-02-2007, 09:05 PM
Teammate of mine has 2 MT15's in a Grand Am..I'm sure that he will chime in as soon as he sees this thread

matrxx dude
01-02-2007, 09:06 PM
it can happen.

matrxx dude
01-02-2007, 09:08 PM
im not sure if this is possible in your car,but if so i would point subs forward and port,push it all the way to the back of the seat,and then seal off around the box.

01-03-2007, 12:56 AM
well well well. its a beautiful thing to see this because i was jsut like u a couple months ago but with a grand am instead. heres what i did when i started out. i dont have recent pictures but i decided to go with aero ports and fire them into the cabin and the rest is history. heres what i did...

had to fiberglass the wheel well....

Optimas on both sides....


Even had to alter the car SLIGHTLY lol....



heres the original idea i had for the ports 2 6", 6" deep PVC ports....what a fool i was... they are ported in the trunk, not inside the cabin....o well. heres the holes....


and heres a sloppy picutre of how the front fits in there with some bracing from a 2x2 (there is also another 2x2 on the top) (PS: THIS IS NOT ENUFF BRACING)....


where do the amps go, might u ask....


i really wanted to keep this a CAR and not a real project, i guess, so i kept the back seats fully functional by taking them out, taking the cushioning out and puting a piece of mdf with some kind of cushion from the local hobby lobby)

heres the face of it. had to cut it at a slant to fit it in there... wayyy more work than i bargained for.....


i never ran out of uses for fiberglass thru this whole expedition....


if i find some more pictures, ill put em up but this is just what i found. any questions PM me....

01-03-2007, 12:57 AM
looks nice

subs forward port back works well in a CRX

01-03-2007, 01:07 AM
Well I just got done building a box in the trunk for my grand prix. I have two 12" Fi Qs. I would suggest planning everything out really well, and you will prolly have to use the spare tire well (I didnt). Just remember to take your time, cause once its in there, you cant really take it out. LOL and remember to take the spare and jack out, something I forgot, which ****** when I got a flat last week :(

01-03-2007, 01:10 AM
i did an in trunk build. it wasnt the funnest build but if you do it right it will work and it will be loud. here are a couple of pics.
first i did the front. then the floor, the sides, the tub. then the top and back. everything got fiberglass in place.


here is a video of it .
it only did a 143db with about 400rms per sub. weak. http://media.putfile.com/2-type-r

01-03-2007, 08:50 AM
Wow guys thanks for all the replies, I never really considered fiberglassing. Would it be worth it to fiberglass and have the subs and ports firing into the cabin. In my car I have the pass through in the back seat that folds down, which is always folded down because it makes it alot louder. I could have the port in the middle firing directly through the pass-through. Lets keep the pics coming.

P.S. inapontiac, the picture that says "Even had to alter the car SLIGHTLY lol...." what is that a picture of?

01-03-2007, 09:39 AM
He cut a little out of the metal that is below his rear deck

you may be able to see it a little better by comparing these 2 pics