K&N Has Designed a New 16 inch XStream Air Flow Top to Replace Metal Air Cleaner Lids

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K&N helps provide the performance racers and street enthusiasts have been looking for with a new 16 inch diameter XStream® Air Flow Top (66-1601). XStream Air Flow Tops incorporate K&N's famous pleated cotton air filter media into an air cleaner lid.
K&N 16" XStream® Air Flow Top 66-1601.
K&N 16" XStream® Air Flow Top 66-1601.

K&N XStream Air Flow Tops are innovative round filters designed to replace a metal air filter top. These filter lids add more filter area and are designed to increase horsepower and dirt capacity.  Washable and reusable, the XStream Air Flow Top filter delivers outstanding protection for your engine.

K&N part number 66-1601 has a unique 16” diameter; which was designed to be used as a replacement lid for one of K&N’s low profile 16”, or equivalent, air cleaner assemblies.

K&N XStream® Air Flow Tops are also available in 9", 11", and 14" diameter replacement tops as well as full air cleaner assemblies.
K&N XStream Air Flow Tops are also available in 9", 11", and 14" diameter replacement tops as well as full air cleaner assemblies.
K&N’s low profile 16” custom assemblies for 4-barrel Holley Dominator carburetors were designed for installations with the carburetor mounted high near the hood. K&N's 16" XStream Air Flow Top is a great solution for adding extra air flow in these space cramped situations.

For increased protection and style, K&N offers Precharger® filter wraps in a 16” diameter that can be used in conjunction with one of these low profile Holly Dominator air cleaner assemblies. Prechargers are made from a durable polyester material containing uniform micron openings which will stop small dirt particles; yet add little restriction to the airflow of the filter. A K&N Precharger is recommended for extra protection in off-road or dirt track racing applications.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

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K&N Engineering in Riverside California is the world's leading manufacturer of washable performance air filters and air intake systems. K&N invented the reusable high flow cotton air filter in 1969 and has been perfecting the technology ever since. K&N is a world class filtration company selling air filters, oil filters, and intakes in over 30 countries. K&N sells over 5,000 products designed for cars, trucks, motorcycles, engines, and industrial applications. From their Million Mile Warranty to their Consumer Protection Pledge, K&N stands behind their products and their consumers 100%. The distinctive K&N logo represents performance from one of the original performance companies. For more information, visit