They are called powder prefilters, i have the same problem with my 99 RMK. sno-tek.com may have the one you need or else try slp.com. powder gets into your air box (wich you know) and screws a lot up. keep withthe isopropale alcohol (iso heat in a red bottle, not yellow) and look into one of these prefilters. i just ordered mine but they are suppose to let NO snow in and only a 1% reduction in air flow. My cuz has one and he doesnt have the problems i do in the powder, wich sucks for a mountain sled and a trip to wyoming just a few weeks away. Good luck O yeah, they only cost $20 too
dano