K&N Engineering Drop-In High-Flow Washable Air Filter E-2021

K&N Engineering Drop-In High-Flow Washable Air Filter E-2021 Brand: K&N Engineering The K&N E-2021 Drop-In High-Flow Washable Air Filter delivers proven performance and longevity. Built with layered, oiled cotton media, this reusable filter increases airflow while capturing contaminants—helping improve throttle response and potential horsepower gains without sacrificing protection. High-flow design: Optimized media for improved air delivery to the engine. Washable & reusable: Durable construction engineered to last the life of your vehicle. Easy drop-in replacement: Installs directly into the factory air box for fast, hassle-free upgrades. Proven protection: Multi-layer cotton gauze traps dirt and debris to safeguard engine components. Backed by warranty: K&N 10-Year/Million Mile Limited Warranty for long-term peace of mind. Upgrade to the K&N E-2021 to experience superior airflow and consistent performance from K&N’s most popular drop-in filter. Routine cleaning and re-oiling keeps the filter performing like new—saving money on replacements while supporting sustained engine efficiency.