I been posting on here bout another build my current one sucks... I know I need 13cubes net but damn, thats still really big for the ext. cab truck I have. that's just a regular ported box, im trying to get away from having a wall. I don't mind it but the truck I have is known for leaky back windows,,, and ive already replaced the seal in it once, and if it leaks I wont know having a wall till it ruins my equiptment,, so any other suggestions on a box that might require less airspace? I know there lots of different designs out there just not familiar with them. any sudgestions?? thanks for all yall input and the help I get from the smd fam! holler