CFM Question

My case is the 6082 series from CodeGenGroup that has a stock side LED fan already. As far from what I can tell, its from the maker Super Power and the only other label on it quotes it as "Nice Cooler". Because of this vague label, I am unable to determine the cfm that it produces (I am trying to equalize intake and exhaust) and I was wondering if anyone happened to know what the cfm rating on one of these case fans might be.

I would have to guess anywhere from 21 - 30 CFM Max.

I would probably replace it anyway, unless you can feel a lot of air coming through. Stock fans = teh bad.

I feel a good degree of air coming from it, so I am guessing about 25-30cfm, but I probably will replace it, because its a sleeve bearing case fan, I was just wondering if anyone knew the cfm rating for it.