1. Waiting for the info on that filter element.
2. Certainly would like to know if There's a K&N to match it.
3. I seem to recall that one of the pro tuner guys around the forums had done actual dyno testing to compare the popular air filters' performance, including the ventilator. IIRC the ventilator stood up very well in the test. I think another AC would actually flow more on the flow bench, but it was academic because the engine being used for the test couldn't pump that much air, anyway. I do wish someone with a dyno would repeat the tests and maybe do it on a 124 to really push the flow requirement.
4. I prefer the looks of the ventilator, but if it is actually a limiting factor on my (currently) 113", I might switch.