K&N Engineering Drop-In High-Flow Washable Air Filter E-3120

K&N Engineering Drop-In High-Flow Washable Air Filter E-3120 Upgrade airflow and performance with the K&N E-3120 Drop-In High-Flow Washable Air Filter. Engineered with layered, oiled cotton media, this reusable filter improves airflow, traps contaminants, and is designed to help increase horsepower while protecting your engine. High-flow design: Optimized media for improved air intake and throttle response. Washable & reusable: Durable construction that lasts for the lifetime of your vehicle—clean and re-oil when needed. Simple installation: Drop-in replacement fits your factory air box with no modifications required. Reliable protection: Multi-layer cotton media captures dirt and debris without restricting airflow. Backed warranty: Covered by K&N’s 10-Year/Million Mile Limited Warranty for long-term peace of mind. The E-3120 is K&N’s most popular drop-in filter, offering a cost-effective performance upgrade that combines engine protection with measurable gains. Ideal for daily drivers and performance enthusiasts who want better airflow without sacrificing filtration. Why choose K&N E-3120? Durable, serviceable, and engineered for performance—install and enjoy superior airflow and sustained engine protection.