i got the same exact subs, however i use the audiobahn 1500hct amp...i like the flame amp better.and according to audiobahn the more subs u hook up the more rms watts it pushes thats what its built for but i cant fit more then two of them bad boys in my trunk either lmfao...i also dont use ported box..dont like the sound of ported box..nice setup tho..

 

ps. "wash ur car" lmfao