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The K&N drop‑in high‑flow air filter for the 2006–2010 Honda Civic Si (2.0L) and compatible Honda models is a washable, reusable filter built from layered, oiled cotton media to improve airflow while capturing contaminants. Designed to install into the factory air box as a direct replacement, it is covered by K&N's no‑hassle lifetime limited warranty and intended to provide long service life and potential horsepower gains.
K&N 06+ Civic Si Drop In Air Filter
