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K&N drop-in replacement High-Flow air filter for Audi A4 L4‑1.4L (2015–2018) uses layered, oiled cotton media to improve airflow while capturing contaminants, with a reusable design intended to last the life of the vehicle. The filter installs easily into the factory air box, offers a measurable increase in horsepower, reduces disposable filter waste, and is backed by K&N's No‑Hassle Lifetime Limited Warranty.
K&N 15-18 Audi A4 L4-1.4L 18-20 A5/RS5 2021 Q5 F/I Drop In Replacement Air Filter
