Looking for box design for 2 fi bl 18s

[Noflex]

I have a 2004 Chevy 2500 crew cab with no backseat max dimensions are 60L 30H and 30d witch I know is way to big would like to fire subs up an have port face upwards too any help,would be appreciated

[Joe X]

So here is a suggestion, power: to subs rated, amp subsonic filter to 28Hz,, figure is just an assembly guide:

[Noflex]

Thanks I think that should work