K&N air filters, whats your opinion?

[bazza91]

So in this thread we have seen only UOA's that show k&n have no adverse effects on your engine over time.
Sprintman you keep arguing black and blue that they are no good, could you show us a UOA that shows the crap filtration qualities of k&n ? Please don't mention Bitog forums and how many are on there. Show us here. The amount of time you have spent saying to go there and look at UOA's you could've have just posted one here and ended the argument.