What amp do I need for my 12 inch Kicker subs?

[Baseball Freak 22]

I have two 12 inch Kicker subs. Here us the subs.
http://m.bestbuy.com/m/e/product/detail.jsp?skuId=9894213&pid=1218190971670&catId=pcmcat223300050038&ev=prodView#acces-attach