I have 2 10" American Bass subwoofers in a ported box with 800 watt hifonics amp...
this setup slams in my teg, honestly if you try to get any more bass you're gonna have heart failure or something lol definitely enough to bump along happily.

$250 or looking for a WET nitrous kit (I may be able to throw a little cash on top). Let me know what you got!