K&N Engineering, of Riverside, California, is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. From humble beginnings as a family run business over 40 years ago, K&N Engineering, now a truly global company with offices in the U.K. and the Netherlands, continues to exist as a family owned business with an enthusiast mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing.
K&N’s lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road... more
Dress up under your hood and get improved airflow at the same time. K&N air filter elements are the best you can get. Unlike normal paper element filters, the K&N filter is reusable and "rechargeable"... more
Originally developed for demanding race applications, our premium Performance Gold® Oil Filter is rapidly becoming a favorite among consumers for its durability and easy removal... more
K&N Recharger® kits contain K&N air filter cleaner and air filter oil for cleaning any K&N Air Filter. Restores air flow efficiency so your K&N air filter performs like new! This kit contains Filter Cleaner and Re-Oiling fluid in a squeeze bottle form.
K&N's Fuel Injection Performance Kits (FIPK) are designed to promote performance in stock fuel injected engines by allowing air filtration with least resistance in air flow... more
Originally developed for demanding race applications, our premium Performance Gold® Oil Filter is rapidly becoming a favorite among consumers for its durability and easy removal... more
NEVER OIL YOUR AIR FILTER AGAIN K&Ns DRYFLOW Synthetic filter eliminates any warranty concerns on new vehicles because there is no chance of oil traveling up the inlet path and damaging the Mass Airflow (MAF) sensor... more
K&N filters are the best you can get. Improve airflow to your engine and you will experience an increase in power and performance. Unlike normal paper element filters, the K&N filter is reusable and “rechargeable.” When you would normally throw away an old filter, you simply wash and re-oil this filter, and it is as good as new... more
Built for performance and show utilizing the highest quality components, the K&N 77 Series High-Flow Performance Kit is a free-flowing mandrel-bent aluminum tube induction system designed for Trucks and Sport Utility Vehicles... more
A sister product to the 57 Series FIPK, the 63 Series Intake Kits or AirCharger® Intakes are built for many different vehicles and represent a dramatic improvement over a K&N O/E replacement filter alone... more
Dress up under your hood and get improved airflow at the same time. K&N air filter elements are the best you can get. Unlike normal paper element filters, the K&N filter is reusable and rechargeable... more
Originally developed for demanding race applications, our premium Performance Gold® Oil Filter is rapidly becoming a favorite among consumers for its durability and easy removal... more
K&N's Fuel Injection Performance Kits (FIPK) are designed to promote performance in stock fuel injected engines by allowing air filtration with least resistance in air flow... more
K&N’s lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road... more
K&N Recharger® kits contain K&N air filter cleaner and air filter oil for cleaning any K&N Air Filter. Restores air flow efficiency so your K&N air filter performs like new! This kit contains Filter Cleaner and Re-Oiling fluid in a spray bottle form.
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The terms Quadratec and Essentials are Registered Trademarks of Quadratec Incorporated, Registered in U.S. Patent and Trademark Office. All manufacturers names, numbers, symbols and descriptions are used for reference purposes only, and it is not implied that any part listed is the product of these manufacturers or approved by any of these manufacturers.
*Jeep, Wrangler, Rubicon, Renegade, CJ, Quadra-Trac and the Jeep Grille Design are registered trademarks of Chrysler LLC. Quadratec, Inc, has no affiliation with Chrysler LLC. Throughout this website and catalog the terms Jeep, Wrangler, MOPAR®, & Rubicon are used for identification purposes only. Geo is a registered trademark and Tracker is a registered trademark of the General Motors Company. Sidekick and Samurai are trademarks of Suzuki Motor Corporation. Amigo is a product of Isuzu Motors Limited. Chevrolet, the Chevrolet Emblem, S Series, GMC, GMC Truck, Chevy, Vortec and Sonoma are registered trademarks of the General Motors Company. Expedition, F-Series, F-150, F-250, F-350, Super Duty and Flare Side are registered trademarks of the Ford Motor Company. All other marks, names, and logos mentioned on this web site are the property of their respective owners.
Throughout this web site all the preceding marks & logos are used for identification purposes only. Quadratec has no affiliation with the Chrysler LLC, MOPAR®, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited. It is not implied that any part listed is a product of, or approved by Chrysler LLC, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited.
Quadratec, Inc. is sometimes mis-searched as Quadartec and Quadratech, we have no affiliation with either. [5]
K&N Engineering, of Riverside, California, is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. From humble beginnings as a family run business over 40 years ago, K&N Engineering, now a truly global company with offices in the U.K. and the Netherlands, continues to exist as a family owned business with an enthusiast mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing. 
