Havent quite started building it but i will be building it very soon. Im going to have 2 sa 15s with 2500w amp and a small amp for rockford fosgate door speakers. I dont know what brand the amps are going to be and I dont know what the box is going to look like yet... Im going to build a box with subs facing the top and port across the bottom facing door or a box very similar to the box in the video i have linked at the bottom.

Rag Trick 2 Sundown SA 15's Toys For Tots Car Show 11/04/12 - YouTube