Upgrade your ride today with K&N's top - selling drop - in air filter! This amazing filter offers you: • Superior Airflow: Engineered to improve airflow and boost your vehicle's performance. • Reusable Design: Built to last the entire lifespan of your car, saving you money in the long run. • 10 - Year/Million Mile Warranty: Backed by K&N's trusted warranty, giving you peace of mind. This high - flow air filter features a state - of - the - art layered, oiled cotton media that captures contaminants while providing an increase in horsepower. It easily installs into your factory air box. This part fits multiple BMW models including 2012 - 2016 528i, 2013 - 2015 X1 sDrive28i, and many more. Don't wait, start enjoying better performance now!

This K&N air filter is perfect for BMW owners who want to enhance their vehicle's performance. Whether you're a daily commuter or a weekend road - tripper, this filter will make your driving experience better. It's designed to fit specific BMW models like the Z4, 528i, and X1. As for technical details, it's a drop - in filter that fits right into your factory air box, so you don't have to worry about complex installations. It's built to last, so you can rely on it for many years of driving.