What make is some sound better than other's...

Any recommendations for two 10'' Rockford Fosgate P1s

In sealed enclosures the only thing that affects the sound is the size.

In ported boxes the size, port area and tuning frequency all play a part in the overall sound of the box.

For 2 P1s, you could go either way. Though you might get a slight peak around the tuning frequency if you go with a ported enclosure.

l have two kicker 12 is 1200 watts a piece. & a 1200 watt kicker amp. When l bridge it, it hits hard. l get complaints. ha

Butt u could mount ur speakers into a box. Drill nice size holes in the back of the speaker box so u could get some air in there. So they do not blow. Makes them hit alot harder to. But l got plexy glass in front of mine. They look nice. But when u put them in ur trunk. l have always noticed people put there speakers out towards there trunk. l face mine towards my seat. That makes it sound alot better also.

You could always go get u a little 400 watt amp & bridge it up to 800 watts. l bet that would make ur stereo sound sweet.