Fi 18 Btl

[NotoriouslyLoud]

I am looking for ideas/help with a box design for one 18 btl with 3rd magnet, cooling, and HiXmCoil. The sub will be ran off a hifonics gx 3000. The box will be for a 1998 Chevy astro so i have plenty of room for this bad boy. I am looking for ideas for a street beat box. I am going to be running one of these bad mofo until i can get the other 18s for the wall set up, but my 12s just are not doing it for me anymore. With the right box do you think i will see again in dbs over my 4 12 mtx 7500. I know i will be losing cone area but i can really hammer on this 18. So any help would be great. Thanks guys.