Originally posted by: OregonDunePatrol
For my type of riding the K&N with a prefilter is the best. All this talk about cleaning filters all the time is nuts - Just get a pre-filter and you'll have a lot less cleaning to worry about. The condition of the main filter is paramount. I dont know of anything that hold up better to riding conditions over time than the K&N. I realize that a lot of the race guys use foam filters - but they clean them all the time. All that cleaning will break down a filter in a hurry. The K&N is designed to last a really long time - If you have a pre-filter - clean it and you wont have to worry as much about cleaning the main filter.