I doubt theres enough volume in a corsa's boot to run 2 12" subs in ported boxes properly too... Im open to correction though!

See if you can find out the model number if possible - Some subs arent desigend to be run in ported boxes, and the box volume required changes a lot depending if is ported or not., so its hard to recommend without knowing.

havent got a clue of the model numbas rockford fosgate 2112s or sumthin along them lines older models aswel i think very heavy n lots of bass from em

What subs are you running and what are the specs?

Right i dunno wether to have 2 12s in a sealed box or 1 of the 12s in a ported wich im doin now n it sounds nice but still got 1 sub doin nuthn.

will using a mrd-m500 to run em so do i ???
1.keep both in sealed try n make it all look pretty:o(box is ugly)
2.keep ported and buy another 4 the other (kinda like this idea as ive got a few ideas how to put the boxes)
3.buy a double ported box