Meat, first off, :notworthy: :notworthy: :notworthy: ^^^ He's the man!
BUT!
I disagree %110.... I know you have been around Meat but have you used a K&N for this stuff ever? Because I do and as long as I clean it thoroughly and oil it, with an outerwear.... Not a spec of anything is getting in my motor. I also use the sealant for where it seals onto the airbox..... I raced 2 hour long races with every type of granular there is floating around...... and after taking the carbs apart and not seeing a spec of anything in the carb bells, or bowls, I'm sold. :yes:
Warnert Racing Rules ATV 4x4 Series with K&N Filters (Clifton Beasley at Unadilla )
http://www.knfilters.com/images/press/warnert6.jpg