While there is much more to the performance of these products than simple flow numbers, flow numbers are important.
Track and dyno numbers are good, but variable. Properly done, flow numbers are reproducible and tell part of the story.
I think the available info on the intakes and filters is incomplete without that data.
I had access to a big flow bench a couple of years ago, but no more. Can anyone do some flow tests?
It would also be interesting to get some data on how the performance of the intake systems drops as the filters get dirty..
Do the filters in some of the more exposed ram-air designs get dirty more quickly and ultimately end up with less average performance?