Most experienced users on here will tell you that you do get more dirt through over OEM.who said they let dirt through?
They come already oiled. Just pop them in
dirt gets trapped in the filter, thus you need to clean it, but I never had a problem with dirt coming through.
they allow air to flow more freely vs the average stock filter
They don't let dirt through. The other brands "race filers" are the ones that let dirt through, and should not be used on street bikes.I have a K&N on the way. Any input on this air cleaner other than it lets dirt through. Does it increase throttle response, or pull noticably different? Does it cause the bike to run lean?
same exact thing I have heard and read. I still have the stock filter and thinking of getting the BMC raceSorry, of all the dyno runs that I have performed (gsxr-1000 01-04, no 05s yet), I have NEVER seen a K&N filter increase rwhp..........for the most part they DROPPED rwhp.
They certainly are good for filter life, but that is just about it, should you be looking for a race filter, the BMC race unit WILL increase rwhp, but the filtering capacity is decreased.
I don't see the logic behind such statements, although I hear the all the time.any air filter that allows more air to flow into your engine will decrease hp unless you tune your efi to also allow more fuel to flow in with the increased air flow.