Why should I use a K&N drop-in air filter instead of a standard paper filter?K&N drop-in air filters utilize a washable, reusable oiled cotton media engineered to capture more contaminants than standard paper filters.Can I install a K&N drop-in air filter myself?Yes, K&N drop-in air filters are designed for an easy DIY installation, replacing your existing air filter in minutes with no special tools.K&N Drop-in Air Filters for your vehicle are engineered to deliver a sustained peak performance, boasting a high score for Engine Performance. Featuring a state-of-the-art design of layered, oiled cotton media, these filters improve airflow and capture contaminants. Experience the confidence of a superior engine protection and a noticeable boost in acceleration.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 vehiclebacked by K&N’s 10-Year/Million Mile Limited WarrantyWhy Choose the KN Drop in Air FiltersDelivers sustained peak performance with a filter you’ll never replace again.Achieves superior engine protection by trapping more dirt and debris.Provides a noticeable boost in acceleration and throttle response.Transforms your driving experience with enhanced engine breathing and power.Who Is This For?Street Performance 8/10Improves airflow and designed for horsepower increase.Engine Performance 9/10Engineered to improve airflow and increase horsepower.Easy DIY Install 10/10Drop-in install type, designed for ease of use.Racing Competition 7/10Designed for improved airflow and horsepower gains.Track / Autocross 7/10Designed for improved airflow and horsepower gains.Daily Driving Comfort 6/10Washable, reusable, engineered to last vehicle lifespan.Frequently Asked QuestionsWhat are K&N drop-in air filters?K&N drop-in air filters are washable, reusable High-Flow Air Filters engineered to improve airflow and capture contaminants. They are designed with a state-of-the-art layered, oiled cotton media for superior engine protection. This filter transforms your driving experience with enhanced engine breathing and power.How easy is it to install a K&N drop-in air filter?Installation of a K&N drop-in air filter is an Easy DIY Install. Its drop-in install type means it replaces your existing air filter directly without modifications. This ensures a straightforward upgrade for your compatible BMW.What performance gains can I expect from a K&N drop-in air filter?A K&N drop-in air filter is designed to provide an increase in horsepower, scoring a 9 out of 10 for Engine Performance. This enhancement delivers sustained peak performance with a filter you’ll never replace again. Drivers seeking enhanced engine performance will appreciate the noticeable boost.How do I clean and maintain my K&N drop-in air filter?K&N drop-in air filters are washable and reusable, offering an easy maintenance level. Their state-of-the-art design of layered, oiled cotton media can be cleaned and re-oiled. This ensures sustained peak performance and superior engine protection for the entire lifespan of your vehicle.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”:”33-2059″,”sku”:”KNN33-2059″,”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”},”offers”:{“@type”:”Offer”,”price”:”57.99″,”seller”:{“url”:”https://www.motorsportmayhem.com”,”name”:”Motorsport Mayhem”,”@type”:”Organization”},”availability”:”https://schema.org/InStock”,”itemCondition”:”https://schema.org/NewCondition”,”priceCurrency”:”USD”,”priceValidUntil”:”2027-05-25″},”category”:”Air Filters – Drop In”,”description”:”Delivers sustained peak performance with a filter you’ll never replace again. Achieves superior engine protection by trapping more dirt and debris. Designed to provide an increase in horsepower”,”isRelatedTo”:{“name”:”Air Filters – Drop In”,”@type”:”Thing”},”alternateName”:”K&N Drop-in Air Filter Sustained Performance”,”additionalProperty”:[{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”washable, reusable High-Flow Air Filters”},{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”state-of-the-art design of layered, oiled cotton media”},{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”engineered to improve airflow and capture contaminants”},{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”designed to provide an increase in horsepower”},{“name”:”Feature”,”@type”:”PropertyValue”,”value”:”reus