i'm confused... did you get the boss amp? do you have a link? you have 2 15" kicker CVR's now, right? are they dual 4ohm or dual 2ohm subs? the kicker subs are 500watts a piece so depending on what you have (DVC 2ohm or DVC 4ohm) your gonna have to find an amp that at least puts out 1000 watts rms at either 1ohm if they are 2 DVC 4ohm subs or an amp that will put out 1000 watts rms at 2ohms if the subs you have are 2 DVC 2ohm subs.. What's your budget?
anything upwards of 1000 watts rms will power them, although you dont need to run them at their rms rating. im running my 15 on 1/4 of its rating and it sounds just fine. it all in the box.