I am setting up my 99 maxima for sound, and am adding an enclosure for four 12" subwoofers that will weigh more than 200 lbs. My basic enclosure for three subwoofers that is in there now is allready making my tail sag. I was planning on adding the KYB AGXs to the back so i could adjust them to support the woofers. What do you guys suggest to maintain stock height and comfort?

 

I don't know about maintaining stock height, but if you get lowering springs in the front, it will even out. I have sprints all around, and about 100 lbs of sound stuff in trunk. It makes my car sit nice and even instead of the back being higher.

 

try spacers (don't know the correct name). basically you put the things between the coils so that the spring doesn't compress as much.

 

The spacers are the best suggestion as the addition of AGX' will not support your car higher in the rear...only more firmly.

 

take the subs out and go with a single sub

Ant

 

Spring Spacers from Autozone. Cost ya 5 bucks & give you a height increase of 1/4"
Good Luck

 

build another enclosure out of different materials

 

Get Sprints with your agx. Your car will look perfectly even with a system in the back. The Sprints sit alot higher in the back than the front, and when I had two 12"s and two amps back there it was almost even, the back was still slightly higher. But now I'm dragger style again after my system was stolen .

 

Fiberglass.

 

...or you could go two 18" and get even more "boom" than from four 12" and probably save yourself some money, amp power and some wiring headaches as well.

Two 18's have a total cone surface area of approx 510 sq.in., where four 12's have approx 450 sq. in.

Of course, the enclosures to make proper use of the two 18's would take up most of your trunk space - but, done properly, should add only 80 lbs or so - as opposed to 200.

 

wtf...if i was going to do two 18s they'd account for 80lbs to begin with

 

oooops - I did mean 80 lbs PER speaker - with enclosure.