The K&N drop-in replacement filter for the 2019 BMW 330i (L4 2.0L Turbo) is a washable, reusable High-Flow air filter built from layered, oiled cotton media engineered to improve airflow and trap contaminants. Designed to install directly in the factory air box, it can help optimize airflow and is claimed to support increased horsepower. The filter is covered by K&N's No-Hassle Lifetime Limited Warranty and reduces disposable filter waste.
K&N 2019 BMW 330I L4-2.0L Turbo F/I/DSL Replacement Drop In Air Filter