K&N Air Filter Foam Wrap (25-3900)

K&N Air Filter Foam Wrap (25-3900)The K&N Airforce Pre Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used in very dusty conditions. The Airforce Pre Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Red colored Airforce pre cleaners are oiled with K&N air filter oil after they are cleaned. They are made from large, open cell foam. Gray colored Airforce pre cleaners do not use oil. They have smaller

Stainless steel

Air filter media is washable and can be reused over and over again

In-cab adjustability

The K&N PreCharger® filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions

and detailed instructions

This stainless steel base plate is a custom air filter assembly part that helps give your vehicle that show car look under the hood

K&N Washable Garage Vent Cover is designed to help prevent debris and dirt from entering your garage vent with minimal restriction to the airflow

Will not void vehicle warranty

Constructed from ultra-light weight carbon fiber K&N's Sprint Car Style air box provides ample air flow for your racing needs

purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200

It has an 4 inch inside diameter that reduces down to 3

4 inches reduced down to 3