I absoultely promise you that the stock Toyota filter CFM is not higher than the K&N, in fact, not even close.Lexurious said:Peerformance probably wont change but the amount of dust particles making it into your enging will. They are good in some ways as they can be reused etc but I feel all filters should be disposable. Ill always stick with OEM or equiv.
Usually a clean OEM will outflow a K+N anyway. Hard part is keeping it clean.
A properly maintained filter will not get dirt in the engine. Only a poorly cleaned/oiled filter will.