6th order bandpass or aeroport vented bassreflex

[HerrNuki]

Hello I would like to know which one of these would be better for maximum spl with 2 10'' woofer's.
I have already built bassreflex box with aeroport and with 2x10'' woofer's getting around 600w rms I managed to get 142.7 dB in street A.
Box was tuned to 51hz and car's rezonant frequency is around 57Hz.
Which one generaly should be louder this one I already tried or well made 6th order banpass. That box will be used only for competition and no music will be played on it ,only tones.