Bad a look about picked up pollen, oil & fuel filters. Still looking for air though. I was thinking of getting the k&n however read on a few random good search forums that the oil on the filter can cause problems with the MAF sensor. Also it sounds terrible. Can anyone advise? Anyway I was looking about and trying to figure out which filter to get. I know its just a bit of cotton/paper. Euro car parts recommends the crosland filter as do CP4L. What price am I looking at for a genuine BM part?