The main idea behind an air intake is to suck in the cold air which is densor and hence more powerscottie said:
As far as Max Air Box VS suprastore air box is concerned,they should both serve the same purpose.BTW the Max box though is opened on top but when you shut the hood down it makes an air tight seal plus it seems to draw air from more places then the other box.I personally like the open air box as it looks more tackier
Yasir