CUSTOM COTTON FILTER MEDIA
Four or six layers of pleated cotton filter media act as a physical barrier to contaminants, with pleats specifically engineered to provide a large capturing area.
THE MAGIC SAUCE – RED 201 FILTER OIL
The original red filter oil is what separates K&N filters from the pack. The tacky oil helps trap—and hold—dirt and contaminants, keeping them in the filter and out of your engine.
DURABLE URETHANE FRAME
Liquid urethane is custom-poured and cured for a guaranteed fit, and engineered to last for a million miles of use.
EPOXY-COATED SCREEN MESH
Pleated mesh protects both sides of the cotton filter media and provides a sturdy structure for long-lasting durability.
CNC-MACHINED ALUMINUM FILTER MOLDS
Designed using advanced software and precision-milled from billet aluminum for a repeatable level of premium quality.
EXPLORE THE BENEFITS OF K&N WASHABLE AIR FILTERS
THE ORIGINAL RED AIR FILTER SINCE 1969
There’s a reason top racers trust K&N to protect their trophy trucks in the Baja 1000, premium racecars in 24 Hours of Le Mans, million-dollar NASCAR engines, and high-horsepower dragsters: K&N air filters let airflow in, and keep dirt out. Designed for the racetrack—made for your vehicle. Layered, oiled cotton media provides up to 50% more airflow than traditional paper air filters, which can provide an increase in horsepower. The durable filter frame and media is designed to last for the entire lifespan of your vehicle, and is protected by a 10-Year/Million Mile Limited Warranty.
ENGINEERED TO DELIVER PERFORMANCE
BUILT FOR RACERS, BY RACERS
WASHABLE & REUSABLE
Unlike disposable filters which must be frequently replaced, K&N High-Flow Air Filters are washable, reusable, and engineered to last for the life of your vehicle. Feel confident in your purchase with a 10-Year/Million Mile Limited Warranty.
High-flow cotton media is designed to allow up to 50% more airflow than traditional paper filters—and greater airflow can result in increased horsepower and torque. K&N air filters are tested on a SuperFlow flow bench to ensure increased airflow over a stock filter. View testing data for many K&N filters on individual product pages.
PROTECT YOUR ENGINE
K&N’s state-of-the-art filter features thousands of microscopic cotton fibers, and an innovative design of layered, oiled cotton media helps to capture dirt and shield your engine from contaminants. Each filter design is tested in an ISO 5011 laboratory to ensure excellent filtration efficiency for outstanding engine protection.
Over 100 million disposable air filters and their packaging waste end up in landfills each year. Choosing a washable, reusable product that lasts for the lifespan of your vehicle helps to reduce unnecessary waste.
Engineered to fit easily into your factory air box as easily as any other air filter. Typically installs in less than five minutes with no tools necessary.