Well I had to work till 5am last night so I didn't feel like driving 2 1/2hrs on a couple hours of sleep to meca so I slept in.
I did some metering with my spl lab
at the headrest 140.8 @49hz
sealed on the dash 142.4 @50-51hz
Box is 4 cu/ft tuned to 31.75hz
The car seems to have 2 peaks, ~37hz and ~50hz, the higher one yields a slightly higher score
fwiw the electrical system is 100% stock and the car has maybe 10sq/ft of deadening between all 4 doors, some may chastise for this but I don't plan on having the car much longer so I don't really see any further upgrades.
I'll take some vids tomorrow