Black knight: I understand where you're coming from!
However, from a purely common sense point of view and nothing to prove it with, when the car is in motion, wouldn't all the pressure from the outside air flush out all the inner hot engine air anyways? I can only imagine that the loss in power will only be in slow maneuvers and/or in stand still traffic... which heat soat will set in anyhow.
Lou@Amplified: I like easy-to-remove filters very much!! Whilst the M7's intake was very good, it was a REAL PITA when it came to removing it for cleaning...
I suppose end of the day personally, I don't believe that just changing the air filter will have too much of a positive effect on performance without a non-restrictive exhaust and a tune... but I do like the noise it makes! Aural pleasures I call it and I'd be looking forward to more data pertaining to this and other filters.