This AEM Cold Air Intake is perfect for BMW owners who want to enhance their car's performance. Whether you're cruising on the highway or pushing your car on the track, this intake system will make a difference. It's suitable for those with 2017 - 2021 BMW 230i, 330i, 430i models and their variants. The intake tube is made of mandrel - bent aluminum and has a gunmetal gray powder - coated finish. The AEM Dryflow air filter is oversized and can last up to 100,000 miles before needing a clean, depending on how you drive.