Help with sub box designs

[tmac93]

I have an Orion hcca 10.2, and im looking for the absolute best box design, any help would be greatly appreciated. Size isnt an issue and doesnt matter what kind of box it is. Listen to mostly rap and slowed music so would like to be tuned torward the lows. I want it to slam and sound good while doing so, going to be powered by a hifonics brz2100 and stock electrical. Throw me some ideas guys, thanks in advance. Would love to try a bandpass or t-line. Goes in dodge charger trunk, so space is pretty big.