I Noticed this weekend at s.c. dyno day alot of the lb7 trucks had were running the va box as part of there stack.Also I see BMDMAX has the quad,edge stack with a va box also,I was wondering how this is possible? I'm just wondering is the quad,edge the way to go? Brandon's using it, atleast his sig says he is,and can you stack the va on top of what I currently have??? :help: Please!!!