I wanted it tuned a tad low so I went with 32hz, box is .75ft^3.
port specs are as follows, 1.5" wide, 8" tall, and 39" long.
Don't triple check yourself, the box isn't made from 3/4" mdf, instead I am using 1/2" because I wanted to play with the fiberglass and bedliner and with the two I seen...