It's good K & N are open to dealing with customers and answering queries. Problem is some us go back a few years with K & N products ... and not all experiences are good. I've read quite a few first hand reports from riders using K & N. Dirt bikes, Dual Sport and Street bikes. I also have personal experiences with K & N. I owned a very tricked out 1981 R100RS. It had the pancake sort of K & N that went in the RS's air box. I kept the filter clean and oiled regularly. The bike was never ridden on dirt roads ... yet I found dirt inside my Del Orto Carbs on several occasions in the 40K miles I rode the bike. I asked a very good BMW dealer and friend. This guy is an expert mechanic, racer and amazing guy (sadly, no longer with us) His answer? It's the K & N. A riding buddy had K & N pod filters on his inline four. Same story, dirt ingress. These sorts of stories are all over the net. No doubt some of this is the owners fault, not K&N's, Some claims will prove to be improper install or poor maintenance by owners. But the negative reports are so pervasive and have been going on for SO LONG ... I think we have to conclude there are REAL issues with K & N air filters. I doubt it's some sort of "conspiracy" to discredit and ruin K & N by competitors. Right here on this thread ... started in 2007 ... I've read several negative, first hand report on K & N. These on the DR and other bikes. YMMV, IMHO, Blah Blah Blah.