Ultimate bottom line: It is my believe that the installer is the ultimate fault and stop gap, as it is to their ultimate skill in detecting issues and risk assessment. Now.. having said that, I believe that a faulty install of a k&n can cause a problem where there was none before. On the other hand, I also believe that a properly manufactured product will not fault under normal use conditions.
I will be completely honest here. I have 4 bikes, 3 of those 4 have k&n nutted filters without issue, but they are older per the recall. The only one that failed is my track r6 that receives the most oil changes and attention AND was for sure part of the recall.
Another bottom line imho is that the manufacturer has assumed responsibility and recalled their product. Personally, I will avoid the product until proven once more by those that can assume more risk than me.
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