hey guys i just ordered my FI BTL and since i know they are swamped with orders im in no hurry to build a box. i would rather take my time and do it rite. i just need some suggestions on how big to make it and maybe a design. measurements for my vehicle are 44.5x17.25x33 and its going in a 2006 king ranch expedition. its an 18'' btl and i would like to tune the box to 32 htz oh and i have a hifonics bxi2610d and am ordering a DC power HO alt i have 2 yellowtops with lots and lots of 0guage if i left any info out let me know, still kinda new to the forum