Upgrade your ride today with K&N's top - selling replacement air filter! Here's why it's a must - have: • Superior Airflow: Engineered with a state - of - the - art layered, oiled cotton media, it maximizes airflow to your engine. • Increased Horsepower: Boost your vehicle's performance and enjoy more power on the road. • Long - lasting & Guaranteed: Reusable and built to last your vehicle's entire lifespan, backed by K&N's 10 - Year/Million Mile Limited Warranty. This drop - in filter installs easily into your factory air box. It fits multiple BMW models, including 2020 X3 M, 2019 - 2024 X3 M40i, and 2020 - 2024 X4 M40i. Don't miss out on better performance and airflow from K&N!

Use this air filter when you want to improve your BMW's engine performance, whether you're commuting daily or taking your car for a weekend drive. It's perfect for BMW owners who are looking to enhance their vehicle's power and efficiency. This air filter is designed to fit easily into your factory air box, so you don't need to worry about complex installations.