K&N Universal Air Filters

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications. Regardless of the angle, offset diameter of the air intake, there is a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes. K&N Universal air filters are available in round, tapered (cone style) and oval designs, for just about any special application. Select a universal filter type below to view the sizes that are available. Search for a Universal Air Filter by Dimension OR Select a universal air filter type below to see a list of all air filters for that type.


Round Straight

Round Tapered (Cone Filter)

Oval Straight

Oval Tapered

Dual Flange Straight Oval

Dual Flange Tapered Oval

Custom End Cap (including inverted)		Several Styles

XStream^® Air Flow Top		Several Styles

Apollo Universal Cold Air Intake System		Enclosed Round Tapered

Unique		Several Styles


K&N Custom Air Filter Program PreCharger and DryCharger Filter Wraps Airforce Foam Pre-Cleaner Filter Wraps
These universal air filters are legal ONLY for racing vehicles. Not applicable, nor intended for use on emission controlled street or highway vehicles.

Select a universal air filter type below to see a list of all air filters for that type.