when you buy a K&N its the last filter youll ever buy...
i have never seen a machine blow up from running a K&N and those people who has problems with dirt getting into there engine from using a K&N should prolly wash it...
my dad ran one on his 97 lifted wrangle and that truck seen some crazy conditions and there were no problems with dirt..
my blaster had a K&N
my buddies raptor 350 has a K&N
and my other buddies yfz has a K&N...
they all had outerwears for the dust too....
hmmm i wish some one with a dyno would run a blaster with both filters to see if there is any difference