I have a 2002 Ford Explorer with dimensions of Front to Back - 36" Left to Right - 45*1/2" Height - 19" I currently am running 6 13w1v2's off of 2 Kicker ZX1500.1 and I am looking to get to 15" and narrowed my options to the 15" BL's. I am wondering what size box I should get and what I should have it tuned too. My box now is the exact dimensions that I've given above. I plan on putting 1 Kicker ZX1500.1 to each of the 15". I like the real low bass as in Young Jeezy, Gorilla Zoe, Lil John...etc but I wanna make sure that my highs are also good. Any idea on what I should get the box tuned too? Are the BL's a good replacement for the 6 that I have in there now? Any info would be appreciated