Description:
Is this a genuine K&N filter?This is a genuine K&N Engineering drop-in air filter, engineered for guaranteed fitment and performance in your vehicle.How do I install the K&N air filter?Install this drop-in K&N air filter easily into your factory air box for an immediate engine performance upgrade.K&N Drop-in Air Filters are designed for enhanced engine performance with a high usage score of 9. Engineered with state-of-the-art, layered oiled cotton media, these washable, reusable filters are built to improve airflow and capture contaminants. Experience sustained peak performance and superior engine protection with this straightforward upgrade.Key Featureswashable reusable High-Flow Air Filtersstate-of-the-art design of layered oiled cotton mediaengineered to improve airflow and capture contaminantsdesigned to provide an increase in horsepowerreusable engineered to last for the entire lifespan of your vehicledesigned to install easily into your factory air boxWhy Choose the KN Drop in Air FiltersDelivers sustained peak performance with a washable, reusable filter that saves you money.Achieves superior engine protection by capturing even microscopic contaminants with advanced oiled cotton.Provides a noticeable boost in acceleration and responsiveness through optimized airflow.Transforms your driving experience with an easy, direct fit into your factory air box.Who Is This For?Street Performance 8/10Engineered to improve airflow and increase horsepower.Track / Autocross 8/10Designed for improved airflow and potential horsepower increase.Racing Competition 7/10Aims to increase horsepower for competitive driving.Engine Performance 9/10High-flow design and layered media improve engine breathing.Easy DIY Install 9/10Designed to install easily into your factory air box.Daily Driving Comfort 6/10Improved airflow may offer subtle daily driving benefits.Frequently Asked QuestionsWhat is a K&N drop-in air filter?A K&N drop-in air filter is a washable, reusable performance air filter designed to replace your vehicle's stock air filter directly. Its state-of-the-art design of layered oiled cotton media is engineered to improve airflow and capture contaminants, fitting seamlessly into your factory air box. This enhances your BMW's engine breathing for sustained peak performance.How do I clean my K&N drop-in air filter?Cleaning your K&N drop-in air filter is a simple process that restores its high-flow capabilities. The washable, reusable nature of the oiled cotton media allows for easy maintenance, extending its lifespan for the entire duration of your vehicle. This straightforward maintenance ensures continued superior engine protection and performance.Will a K&N drop-in air filter improve my BMW 228i's performance?Upgrading to a K&N drop-in air filter provides a noticeable boost in acceleration and responsiveness for your BMW 228i. Engineered to improve airflow and capture contaminants, it achieves an "Engine Performance" usage score of 9, transforming your driving experience. This direct fit upgrade delivers sustained peak performance through optimized airflow.What vehicles does the K&N drop-in air filter fit?This K&N drop-in air filter is specifically engineered to fit 2012-2018 BMW 228i, 228i xDrive, and 320i models, along with eight additional vehicles. Its direct-fit design ensures easy installation into your factory air box. You can be confident in its precise fitment for these compatible BMW models.Additional ResourcesOfficial K&N Engineering Product PageInstallation Guide (PDF)Important Notices Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.{"@graph":[{"mpn":"33-2990","sku":"KNN33-2990","gtin":"024844306470","name":"KN Drop in Air Filters","@type":"Product","brand":{"url":"https://www.knfilters.com","name":"K&N Engineering","@type":"Brand","sameAs":"https://en.wikipedia.org/wiki/K&N_Engineering"},"image":"https://d32vzsop7y1h3k.cloudfront.net/90705fd4330ddc295924b801eecfe864.JPG","offers":{"@type":"Offer","price":"68.99","seller":{"url":"https://www.motorsportmayhem.com","name":"Motorsport Mayhem","@type":"Organization"},"availability":"https://schema.org/InStock","itemCondition":"https://schema.org/NewCondition","priceCurrency":"USD","priceValidUntil":"2027-05-27"},"category":"Air Filters - Drop In","description":"Delivers sustained peak performance with a washable, reusable filter that saves you money. Achieves superior engine protection by capturing even microscopic contaminants with advanced oiled cotton. Designed to provide an increase in horsepower","isRelatedTo":{"name":"Air Filters - Drop In","@type":"Thing"},"alternateName":"K&N Drop In Air Filter Horsepower Gain","additionalProperty":[{"name":"Feature","@type":"PropertyValue","value":"washable reusable High-Flow Air Filters"},{"name":"
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