i just bought a set of kicker L7 12' subs, but the problem is i dont have any clue how i am going to build a ported box with enough airspace for them, the minimum airspace is 1.75, max 3.25. my question is can i get that kind of airspace without having to remove my backseat, i understand the box is going to take up all of the rear area of the car, and i dont mind that, as long as i still have my back seat. any ideas, comment, etc would be great!!

 

um sounds like a case for fiberglass to me.

 

ive never delt with fiber glass, how hard is it?