Air Filter Features

Reusable Air Filter

A K&N replacement filter is designed to improve vehicle performance, provide excellent engine protection and last the life of your car, truck, motorcycle, ATV and more. K&N engine filters are easy to install and come with the worry-free K&N Million Mile Limited Warranty.

Designed to Increase Horsepower

K&N automotive replacement air filters are designed to add horsepower and acceleration to your car or truck by providing up to 50% more air flow. More air flow can result in crisper throttle response and more torque throughout the engine RPM range. K&N OE replacement filters are made up of multiple layers of oiled cotton filter media that not only provide superior air flow but also excellent filtration to ensure long engine life.

Easy to Install

K&N replacement filters are made for virtually every vehicle on and off the road and they are custom designed to fit into your specific vehicle's factory air box. Instead of swapping out your old paper air filters over-and-over again, with K&N you simply drop in a K&N replacement air filter once and you've boosted the lifetime performance of your vehicle in as little as 5 minutes!

Lifetime Reusable Air Filters

K&N replacement engine filters last up to 50,000 miles between servicing, depending on driving conditions. With the K&N Filter Cleaning Kit you can easily clean and re-oil your air filter bringing it back to brand-new condition and ready for another 50,000 miles of use. Your one K&N filter is designed to last for the lifetime of your vehicle which can save you a bundle of money in the long-run and eliminate the waste generated from buying and disposing countless paper air filters.

Million Mile Limited Warranty

K&N auto filters are guaranteed to perform for up to10 years or 1,000,000 miles without needing replacement.

Air Filter Testing

K&N is dedicated to providing quality air filter products that meet or exceed your high performance and high filtration demands. K&N uses independent testing labs in addition to conducting tests using our own state-of-the-art in-house testing laboratory. The quality of K&N filters can also be seen outside the laboratory. Carl Judice, of New Iberia, Louisiana, drove more than one million miles with a single K&N air filter installed in his three-quarter ton Chevy pickup. Carl points out that he has never had to rebuild the engine or remove the cylinder head from his trusty pickup truck. Customer satisfaction along with real-world testing doesn't get any better than that.

Filtration & Engine Protection

K&N automotive filters offer an optimal blend of high air flow, filtration efficiency, durability and dust capacity. K&N high flow filter media has been tested in our own in-house laboratories and by independent labs using the ISO5011 air filtration standard developed by the Society of Automotive Engineers. Our goal at K&N is to design reusable filters with the most possible airflow while providing guaranteed engine protection.

Fuel Economy

Fuel economy testing and mileage claims are not as cut and dry as they may seem. The EPA's website states, "EPA's fuel economy estimates are designed to allow consumers to comparison shop. Your fuel economy will almost certainly vary from the EPA's fuel economy rating. This is based on a number of factors, such as weather, road conditions, your driving and maintenance habits, and your use of air conditioning." Many exaggerated claims are found in the marketplace by automotive product manufacturers claiming to improve vehicle gas mileage. K&N does not make any general fuel economy claims. We simply encourage you to try our washable filter products for yourself.

Air Filter Oil

A K&N reusable filter is designed with four to six layers of cotton gauze media sandwiched between two aluminum wire screens. The cotton media is then treated with a specially formulated grade of filter oil that causes tackiness throughout the cotton's microscopic strands. The cotton in a K&N replacement air filter allows high volumes of airflow, and when combined with the tackiness of the filter oil creates an efficient filtering media that ensures engine protection.

History

K&N Filters has been designing and manufacturing performance air filters since 1969. We have designed and manufactured over 2400 high flow air filters to fit most of the latest passenger vehicles and over 500 performance air intakes for automotive and motorcycle owners interested in increasing vehicle horsepower and acceleration. K&N also makes thousands of racing and specialty type air filters and we are the #1 Filter in NASCAR.

Other K&N Performance Products

K&N replacement filters for motorcycle & ATV offer a lifetime of performance for Harley-Davidson™ motorcycles, sports bikes, off-road vehicles, watercraft, snowmobiles and go karts. K&N heavy duty diesel air filters offer excellent filtration and engine protection for class 4-8 trucks, diesel equipment, motorhomes, recreational vehicles, buses, fire trucks, transport vehicles, refrigeration equipment, generators and big rigs. K&N small engine & light industrial air filters are designed to improve the performance of tractors, outdoor power equipment and other small engine applications. K&N also offers a variety of racing air filters, boat, watercraft and other marine flame arrestors, universal clamp on air filters and crank case vent filters for performance and engine protection. Many universal air filter sizes and shapes are available to fit your needs. A K&N car air filter replaces the stock paper filter and provides performance and engine protection.