enclosure design for re mx15d1

I just recieved my first RE sub in the mail the other day. Ive been trying to0 come up with an enclosure that will bust the fu*$%n window out of my 2000 altima se. and im getting mixed info on the box size. i read a couple places that 2 cubes was too small for a sealed box even though thats what the manual says. I made one @2.5 (.75mdf1.5 baffle wood glu joints. fibr resn inside, brad nails, 28X18X12? i think) just to hear it. jl1000.1 pioneer premier head 4gage. cheesy ass old mnstr cap(wich i think is garbage but its what i have at ths pnt). What ya'll say makes sense to me and id appreciate any imput.

Using the available calculators, i made a box, vented. 34.5X17X20X22" vent being 4.5X15.5X23 of that, and 1.5" baffle sub is rescessed so only secured to. 75. Hopefull this is tuned to 34 hz . displacement of sub is 0.22ft³ . i used i would guess a total of 16"X16" of. 75 mdf for bracing, 16 gage1.5" brads fiber redsined all of inside, and used wood glu + PL on all joints. put a smalltriangle in as a toekick. put plastic drywall anchors in holes i drilled (hoping i dont strip wood) for mounting the sub. Any imput, critisizm is welcome want to learn as much as i can. ( really I think I just want to dog my buddies camaro (2 12 inch treos and 1 15 inch treo all TEs) ha ha. i was confused with the calculator; when u put the volume in the vented slot calc.,is the vent in addition to or iside of that volume???? Anyone????

-------------
sometimes its better to remain silent and let people THINK you are stupid, than to open your mouth and confirm.