Anyone know if you can just use a pvc pipe?

 

You can, just remember the length will dictate the tuning.

 

ok, im still confused on how to pick which tuning will be good for it?

 

Looking at the chart and the specs you gave you'll want a 3" diameter port tube that is 12" long. The PDF you linked explains how to install it.

The shorter the port tube, the higher your tuning frequency will be. In this case you won't want to cut the tube shorter than 12 inches.

 

alright thanks alot man! So i should look for a 3" pvc pipe that is 12" long?

 

also whats a cardboard port tube? Is it actually made from cardboard :p, is it like a tube you would get from wrapping paper?

 

I would look more towards a 3" shipping tube and cut it to a 12" length

 

Ok if i can find that ill take it but if not ill use the pvc!

 

Well yesterday i went and got a 3 inch pvc pipe that was 12 inches long. When i got home i noticed the pipe was about 3/4 in diameter but was 3 inch's exactly on the inside. Had to do a bit of modification to the box. Slid the pipe in and siliconed around it and placed the flange back on. MY god what a world of difference this makes! The sub is much louder than i have ever imagined! Thing is the port on the box faces upward, so all the air is just shooting at the rear deck. Im thinking of dynomating just the rear deck portion later on. But all in all it sounds awesome now! Lows are more deep and highs are more rich