Are kicker L7s good speakers and what kind of amp do I need to power 2-15 inch subs?

Are kicker L7s good speakers and what kind of amp do I need to power 2-15 inch subs?
Yes, the L-7s are great. For the amp, you first need to find out whether the sub woofers are 2-ohm, 4-ohm, or 8-ohm. Depending on the answer to that question will determine whether or not you'll need a mono amp or a dual channel amp as well as the wattage.