Hey Chod,
Don't worry about computor skills and such, The most important thing is getting out ther with the little folks.
I know this sounds cliche' but any one who has raised a few young'ins know how fast they grow up. And just as important is the memories they carry of spending time with the Old Man doing what they love.
Sermon Over
There is quite alot of theory and science behind the airbox being part of the intake tract, & having the same resonance effect as the exhaust when tuned.
I will snoop about a bit and get back with some aftermarket filters if you check back later.
You shouldn't have any problems as long as you keep the seal and filter in good shape. I have taken in some of the kids bikes around here to "Have a look at" and found the airfilter so mucked up it resembled a giant bran muffin....
You may also consider a pre-filter or Filter Sock running in the sand. I have gotten a large pair of womens socks that are actually panty hose type material and streched it over a clean air filter to help with the fine silty/volcanic type stuff we have out here.
I suffer from hunt and peck single digit typing and the guys here run circles around my engine, suspension and computor knowledge and sill put up with me so your in like flynn! I had a good spellchecker and somehow goofed that up also.. Oh well.. Live and Learn
Catch you later with some filter options..
Tuck\o/
Motorcycle
http://www.shopmarshalldealers.com/browse.htm?shopBy=10321&catalogid=1793 http://www.marshalldistributing.com/files/snow-2010/p.-644-656.pdf (snowmobile)