dude your a tool,
do your really no what your talkin about or have you just seen a few custom installs with ricey caps in them?
caps are for looks and a pretty much useless
like Fhrx (marty) said spend that money on a Optima Yellow top well worth it, but i dont think you'll need to upgrade batterys with a single amp,
im with Fhrx on this one he knows his stuff ! (happy customer)