I have 2 15" DC Level 3's with added spiders (2 on each.) running off a DC 1.2K @ 1 ohm. I was wondering what size box, tuning and which way to fire. I heard in jeeps that side firing is the best option and to use 2 8" Aero's. I was thinking 7ft^3 @ 32hz with 2 8" aero's side firing but wanted second opinions