sonotube in car

[colemanyoungerinalaska]

so ive been toying with the idea of running 10s each in a sonotube ported out the rear. my original idea was to build a box without a front then place the tubes inside it spray foam the sides and leave an opening between the tubes with the ports 6-8 inches from the rear. then i got to thinking wouldnt this become a sort of 6th order bandpass. something like this hopefully your computer can handle these amazing hi rez renderings http://imgur.com/0oMGL
anyways anyone have luck with doing something like this in a trunk 4 door? im gonna start my next build once i get my 270 amp alt repaired sending it off this week

[colemanyoungerinalaska]

well im gonna try it tomorrow is payday gonna go buy the wood and tubes see how it goes ive had good luck with trying odd things only thing im really worried about is the distance between the ports and the rear wall but ill mess with it before making it permanent. should have my alternator back this week or next then ill put some real power to it