I'm quite sure K&N oil filters are fine and dandy, the only thing I object to is paying the ridiculous taxes that Brazil enforces on all products. The cheapest K&N 204 filter I could find was 68 Reais (more than 33 dollars at todays exchange rate).
I know, it's ridiculous. I've found the MANN filter for 25 reais (just over 12 dollars) and I'll be more than happy with that.
My bike is currently at Brazil's No.1 customizing workshop,
Apocalypse Cycles Check out their creations.
They are fitting a very nice stainless 3.5" out rolled end pipe. Wasn't overly keen on my chop job, but that will soon be rectified.