New sub suggestions?

[robby512]

I'm currently running 2 fi subwoofers with old re baskets I believe there the bl recone in a 4.5 cubic foot box tinned to 30 hz

I have the big 3. I have dual shuriken bt80 batteries 0 gauge ran all threw Out my truck.

And a hifonics 1200 watt amp.

I'm looking for suggestions on something new maybe without breaking the bank maybe go with one monster sub any suggestion willing to spend around 400. Or will I be better off just staying where I'm at?

I do have an old Memphis mojo 15 the orange basket one I can recone any ideas?

biggest I will be able to get in is a 15 it is in an 05 f150 and its in center console.