So I was looking for online prices in the US of K&N stuff, then I saw this:

http://www.bobistheoilguy.com/index....d=66&Itemid=76

The test results show that paper filter is the best when it comes to the task of limiting particulates to the engine. K&N however let a LOT of particulates in.

To K&N users, have you ever had a problem? What do you guys think of this test (and its revelations)?

What is the effect of particulates getting inside the engine? Will it pose a serious problem or is it something that can be fixed in a snap?

Many thanks in advance.