12 pr series subs?

ok ladies and gents i have 2 12 pr series memphis audio subs and a kenwood 600 watt amp powering them and a1.5 farad cap. what i would like to no some better dimensions for a 2004 ford focus hatchback right now they are hitting good and are pretty close dimensions to what it should be but they are still set up for my cougar and no the focus.. the box isnt ported and i would like a port so any help is greatly appriciated and any compliments / critism is welcom