The box is ported and tuned to 32hz. All of the inside joints are covered with clucking to prevent air leakage. The ports are also kinda crazy as you can see in the pictures. The best way to explain it is that it goes over and down rather than just a simple port. The box is also very heavy round 70 pounds if not more,and its BIG. Like I said I had it in a Cobalt with the back seats out but would be better in and SUV or Truck. The measurements are 35in long X 22 in wide X 22in high.

I used this box for daily driving and also did completion's with it. If you get it and put the right subs in you will not be disappointed. Fi subs would be ideal and other brands may work as long as they are a heavy duty type of sub.

Let me know if you would like any more pictures or have any questions.

russ_man05@hotmail.com