NON-RESTRICTIVE - dust and dirt will not clog the filter because they remain on the outside of the element
FREE-FLOWING - despite the outer layer of trapped dust and dirt, air flow between the particles remains virtually unaffected
MOISTURE-RESISTANT - moisture will not clog the oil-saturated element, even completely wet, the filter will allow the engine to breathe freely
MINIMAL-SERVICE - because dirt particles that build up on the outside of the element actually aid in the filtering action, frequent cleaning is not required
Unaffected by pollution control devices - oil breather blow-by is absorbed in the fabric without effect
NOTE: Filter is pre-oiled
Specs for K & N Factory-Style Filter Element - KA-1603