look at the sub specs, in reality no box is built for other subs. subs thats a lol. buy 1 good one, trunk isnt big enough for 2 properly installed ported beasts.
could definitely fit 2 12's in a ported box. I have my fi bl in a 4.4 cube (after port and sub) box was a tight fit but got it to slide in
97 gtp- 3.5 pulley, sd headers, autolite 104's, dhp pcm, hai, 180 t-stat SOLD
94 skyline- drift slut SOLD
97 rx7 fd3s twin turbo SOLD
99 R34 skyline