K&N Engineering Drop-In High-Flow Air Filter E-3770 Reusable Washable

K&N Engineering Drop-In High-Flow Air Filter E-3770 — Reusable & Washable Upgrade airflow and performance with the K&N E-3770 Drop-In High-Flow Air Filter. Engineered with layered, oiled cotton media, this reusable filter increases airflow while efficiently capturing contaminants to protect your engine. Improved horsepower: Designed to enhance engine breathing for noticeable throttle response and performance gains. Washable & reusable: Built to last for the life of your vehicle — simply clean and re-oil per K&N maintenance instructions. Easy installation: Direct drop-in replacement for your factory air box with no modifications required. Durable construction: Multi-layer cotton media backed by a sturdy frame for long-term reliability. Warranty: Covered by K&N’s 10-Year/Million Mile Limited Warranty for peace of mind. Whether you drive daily or push your vehicle on weekends, the E-3770 provides superior airflow and protection compared to disposable paper filters. Install the K&N drop-in filter to enjoy better performance, reduced waste, and long-term value. Key specs: Drop-in fitment, oiled cotton media, reusable washable design, 10-Year/Million Mile Limited Warranty.