Founded in 1969 by two forward-thinking motorcycle racers—Ken Johnson and Norm McDonald—K&N has a passion for innovation, which is why every K&N product is designed using cutting-edge technology for top-quality performance. K&N is the birthplace of the #1 Air Filter in NASCAR, and millions of customers trust K&N High-Flow Air Filters™ (the original washable and reusable design), high flow oil filters, cold air intake systems, and performance fuel filters to provide exceptional engine protection and increased performance for their vehicles.
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Oil Filters

K&N Oil Filters
Air Filters

K&N Air Filters
Air Intakes

K&N Air Intakes
Universal Filters

K&N Universal Filters
K&N: Relentless

The motorsports world flows with K&N. Master engine builders rely on K&N's relentless innovation, testing, and research & development to deliver the solutions that help teams win. That same K&N performance can be found on shelves around the globe. Thanks to K&N, performance is still king. Long live the king.

K&N: Oil Filters
K&N has an oil filter to keep your engine clean and your vehicle going strong, whether you need their Performance Gold ultra-premium; Performance Silver premium for everyday driving; motorcycle & ATV; or a Heavy Duty Diesel filter.
K&N: Air Intake

One of the simplest ways to get better horsepower on a vehicle is to help it breathe better. A K&N performance air intake system is a quick and easy way to get your engine more airflow.
K&N: Fuel Filters
Well-designed fuel filters remove harmful particles and debris from the vehicle's fuel to provide consistent engine performance and help prevent expensive repairs to the vehicle's fuel delivery system. Protect your vehicle with K&N's line of premium fuel filters.

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Cabin Air Filters

K&N Cabin Air Filters
Fuel Filters

K&N Fuel Filters
Cleaning Fluids

K&N Cleaning Fluids
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There’s a reason top racers trust K&N to protect their trophy trucks in the Baja 1000, racecars in 24 Hours of Le Mans, and 10,000-horsepower dragsters in Top Fuel—K&N is the industry leader in aftermarket performance filtration, committed to developing state-of-the-art products that provide increased performance, protection, and longevity.
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