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Adding more cfm of airflow through your carburetor is as easy as replacing your existing air cleaner with one of these K&N X-Stream airflow assemblies. They allow air to enter smoothly from the top, which helps to draw more air in from the sides. That means that you get more airflow headed down the carburetor or throttle body and into the combustion chamber. If you are a serious racer, or just need more airflow, then you need to get K&N air filters.
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On Sale
K&N X-Stream airflow top plates have been designed to replace the top of your existing round filter, thereby, adding additional filter surface area for increased airflow. The addition of this component also redirects airflow inside the filter to pull-in more air for even greater performance efficiency. Cleanable and reusable, the X-Stream airflow top filters deliver the best protection available for your engine and are offered in a wide range of applications. The filter top has a 9 in. outside diameter featuring durable black powdercoated trim with K&N logos embossed around the rim. Order the K&N X-Stream airflow top plate designed to fit your application needs.
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K&N drag racing scoop filters are the smart way to protect your drag car's motor from dust and debris on the track and in the pits. K&N designed these filters to fit specific scoop designs popular in drag racing today. K&N drag racing scoop filters are engineered with two filter elements, providing maximum airflow and protection. They're offered in a wide variety of shapes and styles to fit your application.
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K&N velocity stack air cleaners are designed for engines with the traditional round air cleaner housing and help provide more airflow to increase performance. These complete air filter assemblies consist of an open 360-degree, free-breathing Filtercharger element on top of a stainless steel or steel (application dependent) velocity stack base that features a polished or chrome mirror-like finish for added style under the hood. To maintain the filter, simply wet or roll in cleaning solution, hose the filter off, let it dry, reapply air filter oil, and reuse again. The air must flow—and it will when you order the K&N's velocity stack air cleaners best suited for your application!
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K&N air filter assemblies use a surgical cotton fabric element soaked in oil as their tack barrier. Sandwiched between layers of aluminum screen wire, the square holes in the cotton catch tumbling air and straighten it out. Since air moving in a straight line flows faster, these filters can actually improve airflow. Assemblies include an element and top and bottom plates and are available in several sizes and styles.
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K&N air filter bases are just what you need to build that custom air cleaner assembly. K&N air filter bases are available separately for replacement or special applications to top-off any engine.
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On Sale
All of K&N's custom air filter assemblies include K&N's world-famous washable, reusable Filtercharger elements. These assemblies are available in many different sizes and styles, so there is sure to be one that suits your needs.
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K&N marine flame arrestors feature a unique oiled cotton gauze and epoxied screen filter element. Through test after test, they have withstood a wide range of marine punishments: backfire, vibration, moisture, salt spray, rust and corrosion. They satisfy Coast Guard regulations while offering critical engine protection. Who could ask for more?
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K&N Flow Control air cleaners utilize a specially designed base in combination with a unique lid, featuring a tongue or protrusion that is designed to reduce intake turbulence. The resulting smooth, laminar flow enhances cylinder filling, horsepower, and torque. The filter element is the world famous K&N Filtercharger, for the ultimate in flow and filtration.
Not Yet Reviewed
$329.99
K&N Stubstacks reduce turbulence, improve metering accuracy, and straighten and increase the airflow by reducing restrictions. Hot Rod magazine's flowbench testing recorded an airflow increase of 28 cfm on a 650 cfm carb, and 40 cfm on an 850. This extra airflow builds up to 10 percent more horses. They fit standard bore Holley carbs, and work best with 4 in. or 5 in. tall elements.
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K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application.
Not Yet Reviewed
$26.99
K&N offers these air cleaner top plates for many air cleaner applications. Many different styles, shapes, and designs are available.
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$21.99
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$329.99
K&N custom plenums are designed to increase the amount of cold air entering your engine. They feature a snorkel that can be fitted with a hose or remote air filter to direct cold, incoming air directly into the carb. They're made from durable cast aluminum, and feature a black powdercoated finish with natural aluminum highlights.
Not Yet Reviewed
$320.99
K&N RK Series air filter assemblies are a remarkable combination of performance and style. They are custom designed for your cruiser, machined from billet aluminum, and offered in two unique styles. These complete, ready-to-use assemblies are also available in a choice of finishes to complement the style of your Harley® motorcycle. If you're looking for an aggressive appearance and a significant increase in airflow that results in more power, than these high-flow filter setups are exactly what you need. Order the K&N RK Series air filter assemblies best suited for your application.
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$290.82
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