I doubt this is possible but could i fit two 15" Kicker L7's in my trunk with the box? If not what bout two 12's

 

well for starters it helps to tell us what your driving

 

i thought it said what car i drive under my username......but ya im driving a 2005 nissan maxima se

 

to get sufficient airspace for two 15s ported, the box will be fairly large. you'll end up building the box inside the trunk or something since the odds of fitting in a 7+ cubes box into the trunk opening will be pretty slim in my opinion. two 15s sealed will be more doable. i have a ported 15 in my 06.

 

Yeah anything is possible. I own a 4th gen, so im not sure of the exact dimensions of your trunk opening. Pretty much when i build boxes for people i use just a tape measure, pen, and paper. I can get the biggest dimensions of any box that you can squish into your car by just taking some quick measurements. I know for a fact you could get the 2 15's in in a 4th gen. Before i changed it out i had a ported box with 2 15's in it.

Remember with the right people anything is possible. Right now I have a 13+ cubic foot box in my trunk with 2 15's. I can flex the roof of my car and my trunk lid about an inch.