It'll be 70 ounds GIVE OR TAKE. Depending on which subs you use. Some are monstrously heavier than others. It could be up to 120 pounds. The box alone will be a good 50 pounds. So add the subs, and amp to the weight of the box and you'll get a number anywhere from 70 pounds to 120 pounds and on up.

 

Let me know how this works out because I have two 15's in my back seats.

 

Which is a fairly plausible option.
Seeing as there is very little room back there for someone to actually sit, it seems perfectly logical that you could remove the seats to put in Subs

 

2X 15" in a Camaro? Holy SPL

Do you have the subs already? Or your looking to get some?

 

@ Nine-Six-Zee28 - It is plausible but the boxes I have are too small for the 15's.

@ Blasko - I already have them in there, Rockford Fosgate P3's I think.

Didn't mean to hijack the thread.