I think your biggest problem would be supporting the mushroom filters to prevent them collapsing due to the intake pressure when you open the throttle. On the Tuono the std square filter was collapsing on one side on my Rene system
I'd also agree with your thoughts on dramatically reducing the amount of air getting through, we know these motors love lots of air and I reckon smaller filters would mean a big reduction
Jorge really knows his stuff and spent a long time on developing this system, to be honest I reckon if the mushroom filter idea was a winner he's have used it
IMHO I'd leave it on the std filter and keep it spotlessly clean
F9
