box design for 2 12" re sx

[hemi=22s 10+ year member]

i need help designing a box for a 2008 altima coupe for 2 re sx 12"

should it be 1 or 2 chambers, port shape size

i have around 4 ft^3 gross to work with

dual 2 ohm sub

will be for my daily driver with occasional spl competition, i want it to be crazy loud

i have 3 choices for amps:

quantum audio 4000 watt mono amp

mmats d300hc modded

mmats 2100.05

best choice for the subs

rest of system:

o gauge,

big three upgrade

optima yellowtop

premier deh980bt

stinger rcas

epic-160 audiocontrol

eclipse 4 chnl 100x4

4 mmats tweeters

ppemier 6.5 component set d series

i have my amp rack material not cut yet 2cc cobalt blue granute(very rare color)

the shop will cut the amp holes need to know which one

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