First, make sure the box you are going to get will work with the Alpine subs. You should get the spec sheet for the subs and see if they will work in a ported sub box. Is that the brand of the amp? Xtreme? Or is it Orion Xtreme? I would not skimp on getting a decent amp.
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Comptech Icebox, Headers, Exhaust, Lowering Springs and Sway Bars. Mugen front grille. Inspire tailamps. MOMO Sport 18 X 7.5 +42 offset. Axxis Metal Master front/rear pad. 2 Polk/MOMO 10" subs, Orion Xtreme 500.4 amplifier and Alpine CD changer.