Really hope that is 6 cubes gross, not 6 cubes net. 6 net would be pretty big for a pair of 12's.
How big is your cutout going to be? A blowthrough is a good opportunity to go bandpass, and it keeps the cut size small. Be sure to post plenty of pics and videos when it's done, I'll be tuned in.
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-Zach/727Designs-
2012 USACi SPL Mod 0-1000 GA State Record Holder
1988 Honda CRX Si - IASCA Stock Hatchback/Wagon 2
2000 Ford Expedition - IASCA Adv3/Heavyweight 160dB+ -SOLD-