How often should I clean my K&N air filter?Clean your K&N drop-in air filter every 30,000 to 50,000 miles, or as needed for optimal performance and engine protection.What is the main benefit of a K&N drop-in air filter?Achieve superior engine protection and enhanced performance with K&N’s washable, reusable, high-flow air filters designed for improved acceleration.K&N Drop-in Air Filters are engineered for your specific vehicle, promising a performance increase of up to 10 horsepower. Featuring state-of-the-art layered oiled cotton media, these washable, reusable Air Filters – Drop In guarantee superior engine protection and long-lasting filtration. Trust K&N for confidence in your vehicle’s enhanced airflow and sustained peak performance.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 that cleans and reuses.Achieves superior engine protection by trapping more dirt with advanced oiled cotton.Provides a noticeable boost in acceleration and throttle response for a more engaging drive.Transforms your engine’s breathing for optimal power and efficiency on every journey.Who Is This For?Street Performance 8/10Engineered to improve airflow and increase horsepower.Engine Performance 9/10High-flow design improves airflow and captures contaminants.Easy DIY Install 10/10Drop-in install type, fits specific vehicle models.Overlanding / Expedition 7/10Reusable filter lasts vehicle lifespan, captures contaminants.Track / Autocross 8/10Designed for increased horsepower and improved airflow.Daily Driving Comfort 7/10Improved airflow can contribute to smoother engine operation.Frequently Asked QuestionsWhat is a K&N drop-in air filter?K&N drop-in air filters are washable, reusable, high-flow cotton gauze filters designed to replace your vehicle’s stock air filter. Engineered to improve airflow and capture contaminants, they fit the 2010-2024 Lexus GS F/GX460 and Toyota 4Runner/FJ Cruiser models, offering superior engine protection and sustained peak performance.How do I clean a K&N air filter?Cleaning a K&N drop-in air filter involves using a K&N Recharger kit to wash and re-oil the cotton media. This easy DIY maintenance allows the filter to be reused, providing a long-lasting, reusable solution for owners seeking enhanced engine performance and superior engine protection.Will a K&N drop-in air filter improve my Lexus or Toyota’s performance?Upgrading to a K&N drop-in air filter is worth it, as it’s designed to provide an increase in horsepower, scoring an 8 for Street Performance. Its state-of-the-art design of layered oiled cotton media is engineered to improve airflow, delivering a noticeable boost in acceleration and throttle response.Are K&N drop-in air filters easy to install?K&N drop-in air filters feature an easy drop-in install type, specifically designed to fit 2010-2024 Lexus GS F/GX460 and Toyota 4Runner/FJ Cruiser models. This straightforward installation process earns a perfect 10 score for Easy DIY Install, making upgrades simple.What are the benefits of a K&N drop-in air filter for my Toyota or Lexus?K&N drop-in air filters offer enhanced engine performance, scoring a 9 for Engine Performance due to their high-flow design that improves airflow and captures contaminants. They are reusable and engineered to last for the entire lifespan of your vehicle, delivering optimal power and efficiency on every journey.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”:”33-2438″,”sku”:”KNN33-2438″,”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”:”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”:”2027-05-25″},”category”:”Air Filters – Drop In”,”description”:”Delivers sustained peak performance with a filter that cleans and reuses. Achieves superior engine protection by trapping more dirt with advanced oiled cotton. Designed to provide an increase in horsepower”,”isRelatedTo”:{“name”:”Air Filters – Drop In”,”@type”:”Thing”},”alternateName”:”K&N High-Flow Drop-In Air Filt