Hey, a while back (bout a month) I seen some pics of a custom made sub box behind the seats where the cargo boxes where in a 1st gen 7, anyone know where that thread is.....I want a list of the materials and instructions on how to build it.
Thanx

 

if you dont know what you need. i dont think you can make one. the best way to do it is to use fiberglass.
I don't remember a 1st gen.
was this what you where thinking of?

 

Yeah Thats Similar but that would do, the only thing is I want 12s behind each seat. Im only 18 just got this car. Can I get some info.

 

that is one 12" alum. eclips. i have hit over 130 db with it. but the top is MDF on top the stock plastic. with a fiber glass box mounted
between the two layers of MDF it. then a cover layer of mdf to make it all flush. on a 2nd gen if you fiber glass in one of the storige box
you have a 0.86 ft^3 box. don't know bout the 1st gens. if you get a good 12 that is all you will need.... unless you want to run only for spl