the point missed is ,sure the K&N flows more air, but at what cost?More dirt getting by..sure its a one time buy, that being about the ONLY advantage, so all the hype is for.. what? Bob missed nothing..it was done so you can draw your OWN conclusions.... its not the filter that makes the difference(always hearing "how much can I get out of a K&N filter change?)Its the path of travel....ANY restrictions ANYWHERE in the system will produce lower results...no matter what is pulling the air in..