What makes K&N air filters different from stock filters?K&N drop-in air filters feature a state-of-the-art design of layered, oiled cotton media that enhances airflow over stock paper filters for superior engine protection.How often do I need to clean or replace my K&N air filter?Clean your K&N drop-in air filter when needed to maintain its high-flow performance; reusable media eliminates the need for frequent replacements, delivering sustained peak engine performance.K&N drop-in air filters are engineered for enhanced engine performance, excelling in Street Performance with a score of 8. Their washable, reusable high-flow cotton media is designed to improve airflow and capture contaminants. Experience superior engine protection and a noticeable boost in acceleration with this simple, effective 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 vehiclebacked by K&N’s 10-Year/Million Mile Limited WarrantyWhy Choose the KN Drop in Air FiltersDelivers sustained peak engine performance with a filter that cleans and reuses.Achieves superior engine protection by trapping more dirt and debris.Provides a noticeable boost in acceleration and throttle response.Transforms your driving experience with consistently optimized engine breathing.Who Is This For?Street Performance 8/10Improves airflow and designed for horsepower increase.Engine Performance 9/10High-Flow cotton media engineered to improve airflow.Track / Autocross 7/10Designed for increased horsepower and improved airflow.Racing Competition 7/10Engineered for improved airflow and horsepower gains.Easy DIY Install 10/10Drop-in install type, designed for easy replacement.Fuel Efficiency 6/10Improved airflow may contribute to better efficiency.Frequently Asked QuestionsWhat is a K&N drop-in air filter and who is it for?A K&N drop-in air filter is a washable, reusable High-Flow Air Filter engineered to improve airflow and capture contaminants for enhanced engine performance. It is best for owners seeking a simple upgrade to boost their Porsche 924/944’s Street Performance, scoring an 8 in that use case.How do I clean a K&N drop-in air filter?K&N drop-in air filters are designed for easy DIY installation and simple maintenance, requiring only cleaning and re-oiling to restore their high-flow capabilities. This easy maintenance level ensures your filter is always ready to provide superior engine protection by trapping more dirt and debris.What performance gains can I expect from a K&N drop-in air filter on my Porsche 944?Expect enhanced Engine Performance with a K&N drop-in air filter, thanks to its High-Flow cotton media engineered to improve airflow, achieving a score of 9 in this use case. This filter is designed to provide sustained peak engine performance by consistently optimizing engine breathing for your vehicle.Does the K&N drop-in air filter fit my 1985 Porsche 924?This K&N drop-in air filter specifically fits 1983-1989 Porsche 924 and 944 models, ensuring perfect compatibility with your vehicle’s air intake system. Installation is a straightforward drop-in type, designed for easy replacement and immediate performance benefits.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”:”33-2079″,”sku”:”KNN33-2079″,”gtin”:”024844028952″,”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/ff9d557ce20278100bf12e6c94c6d548.JPG”,”offers”:{“@type”:”Offer”,”price”:”83.99″,”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 engine performance with a filter that cleans and reuses. 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 Increased Horsepower”,”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”:”PropertyV