So I guess I'll go with the Hifonics BXi 1606D. Good amp for a good price.
I ordered my subs New Years day, so they should be on their way. I'd like to order they amp soon enough so I can start buying the supplies and start building the box around the time the subs get here.
Anything else I need to purchase?

 

wires...

probably 2ga power/ground
RCA's and a remote wire

 

wiring, fuse(s), and a batt. terminal

 

This, this or this.

edit: sorry you'll also need a set of rca cables to connect to the amp.

 

Perfect, just what I was going to ask, if there was a kit.
This should be sufficient for my dual subs and amp? I'm guessing obviously, but will it eventually fry or blow out?

 

No that's pretty much the best bet to go with. It shouldn't cause any problems. Like mentioned you will want a set of RCA cables as well something like 17ft-20ft long I don't know what length for a 4dr.

 

check out Knukonceptz.com for some good prices on wiring kits...

 

How many channels?
Looking at this one
It's a 2 channel.
And the 4 channel which I believe is 23 feet, it doesn't say but I think it says so on the box.

 

all you need for a monoblock is 2-channel...

 

Cool, so
Amp, wires, and RCA cables.
Anything more??