What does everyone think of this setup, any suggestions?

I have a 2007 Ford Explorer XLT, with 2 15" Niche Audio NW1500HO subwoofers, and a Niche Audio NA 3000D 2400w mono amp, Tsunami 2 farad cap, Tsunami 4200w wiring kit(got the tsunami stuff cheap from circut city closing) the subs are in a sealed enclosure for now but in the process of building a vented box, will be dynamatting most of the truck in the near future.