Description
The K&N Engineering E-3640 is a high-performance, reusable air filter designed to optimize airflow and engine protection. Featuring a layered, oiled cotton media, this filter improves horsepower and overall engine efficiency by allowing more air to reach your engine while effectively capturing contaminants. Its durable construction ensures long-lasting use, making it a cost-effective upgrade for your vehicle.
Designed for easy installation, the E-3640 fits into standard factory air boxes, providing a seamless upgrade without the need for modifications. Its universal round shape measures approximately 9 inches in outer diameter with a 7-1/2 inch inner diameter and stands about 4 inches tall. This filter is engineered to enhance engine performance across a wide range of vehicles, delivering consistent airflow and filtration.
Backed by K&N’s 10-Year/Million Mile Limited Warranty, the E-3640 offers peace of mind and reliable performance over the lifetime of your vehicle. It is compatible with a variety of applications where a high-flow, reusable filter is desired. Note that this product is not CARB-legal but is designed to meet high standards of filtration and airflow, providing a significant upgrade over traditional paper filters. Improve your vehicle’s horsepower, airflow, and engine longevity with the trusted K&N E-3640 high-flow air filter.
Features:
- High-flow layered oiled cotton media for improved airflow and filtration
- Reusable design allows for cleaning and long-term use
- Easy drop-in installation into factory air boxes
- Durable construction engineered for the entire lifespan of your vehicle
- Backed by K&N’s 10-Year/Million Mile Limited Warranty
- Designed to increase horsepower and engine efficiency
- Universal round shape measures approximately 9 inches in diameter




















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