I read about asking for subwoofers and this is what i have.

I have a 1400 crunch watt amp, with a 50 watt stereo.

I plan on using it a lot (in my car)

Sometimes at loud volumes, i want to be able to play it loud and not break my subs.

I'm looking for 2 12'' in.

And i am making a custom box. And another question to add on to that, is a subwoofer better with a ported box?? Or no ports (holes) at all?

There is a Car Audio section. :)

Oh sorry, thanks :)