Description
The K&N E-3804 High-Flow Air Filter is a top-tier air filter designed to enhance airflow and capture contaminants effectively. Featuring a state-of-the-art design of layered, oiled cotton media, this filter is engineered to improve engine performance and is a popular choice among automotive enthusiasts.
One of the standout features of the K&N E-3804 is its reusability, allowing you to wash and reuse the filter throughout the lifespan of your vehicle. This not only contributes to cost savings but also supports environmental sustainability. The drop-in replacement design ensures an easy installation into your factory air box, making it a hassle-free upgrade for those looking to enhance their air and fuel delivery system.
Features
- Washable and reusable design
- Engineered to improve airflow and capture contaminants
- Drop-in replacement for easy installation
- Backed by K&N’s No-Hassle Lifetime Limited Warranty
- Constructed with layered, oiled cotton media
Frequently Asked Questions
What is the K&N E-3804 made of?
The K&N E-3804 features layered, oiled cotton media.
How does the K&N E-3804 improve performance?
It is designed to improve airflow and capture contaminants effectively.
Is the K&N E-3804 filter reusable?
Yes, the K&N E-3804 is washable and reusable throughout the lifespan of your vehicle.
Manuals & Instructions
âš WARNING (California Proposition 65): WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Not CARB approved. This item is not legal for sale or use on pollution-controlled motor vehicles in California or states that adopt California emissions standards. Intended for off-road / competition use where permitted by law.













