Originally Posted by macandphyl
From what I have read, the improved performance is offset
by poorer particulate air filtration.
Back in my TT days I put a K&N on my tow vehicle, which then became my TOWED when I upgraded to a class A.
I felt I got a slight performance boost.. Just about enough to notice.
As for the claims of poorer particulate filtration.. I have read those and seen the evidence from lab tests and the like. I still remain a bit.. er. skeptical as to how much of an issue it is.
My brother, in his spare time was a Dirt Biker.. he ran K&N on his bike as did many of his friends. They never found any evidence of particulate damage to the engines and they run 'em in very "Dusty" enviorments.
Still.. I use the Factory recommended filters on my 8.1.