The K&N High‑Flow drop‑in air filter for BMW 118i/120i/320i (2005) is a washable, reusable replacement designed to improve airflow and help increase horsepower. Its layered, oiled cotton media traps contaminants while maintaining flow, and the drop‑in design fits the factory airbox for quick installation. K&N covers the filter with a No‑Hassle lifetime limited warranty and emphasizes reduced disposable filter waste.
K&N Replacement Air Filter BMW 118I/120I/320I, 2005