well you sound like you wanna go really loud talkin bout 18s and such. ummm i would say you could put a couple good 12" rockford fosgate subs in there...if you want the best go with their T3 or T2 subs...obviously the T3's are better but they can get a little pricey....as far as the amp i would keep it with rockford they got some nice amps too...look at the T series amps they have otherwise their punch series is good too. i prefer rockford fosgate just because they are clean sounding and loud as hell.
