okay yeah perfect, Should get louder than the 2 15s in sealed then if you go with a proper ported box.
Here are some designs and cutsheets any of the 3.5 to 4 cubic feet boxes should work pretty well. lower tuning if you want deep lows. 35hz tuning for everyday music.
*OFFICIAL* Free Ported Box Plans (56k NO!!) - Dodge SRT Forum
BTW for 150, the american bass TNT 15 is a much beefier sub than the sundown E