My friend is giving me his 2pcs 12" JBL subs.

Nakabox na siya. Pero i have doubts kung kasya ito sa trunk ko. So i want to redesign a vented box (for more boom) na kasya sa trunk ng lancer EL 1995 at para mabilis na makuha yung spare tire doon. If not possible yung vented, eh di sealed na lang...

Any suggestions mga car audio enthusiasts?

PS: What Amp can you recommend that could power these? (plus yung 4" seps ko sa front and if possible, yung 6" ko sa likod) :D

TIA