Is this product a direct fit for my car?Confirm your specific vehicle fitment to ensure this K&N drop-in air filter precisely matches your factory air box for seamless installation.How does a K&N air filter improve my car’s performance?This K&N drop-in air filter enhances acceleration and responsiveness by allowing significantly more air to reach your engine.K&N Drop-in Air Filters are engineered for an increase in horsepower and deliver a top score of 10 for Easy DIY Install. Featuring state-of-the-art layered, oiled cotton media, these filters significantly improve airflow and capture more contaminants. Trust K&N for superior engine protection and sustained peak performance with your Air Filters – Drop In.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 designed for longevity.Achieves superior engine protection by capturing more contaminants with advanced oiled cotton media.Provides a noticeable surge in acceleration and responsiveness through optimized airflow.Transforms your driving experience with an easy, direct-fit installation into your factory air box.Who Is This For?Street Performance 8/10Engineered to improve airflow and increase horsepower.Track / Autocross 7/10Designed to improve airflow and increase horsepower.Drag Racing 7/10Designed to improve airflow and increase horsepower.Engine Performance 9/10High-flow, oiled cotton media improves airflow.Easy DIY Install 10/10Designed to install easily into factory air box.Racing Competition 7/10Engineered to improve airflow and increase horsepower.Frequently Asked QuestionsWhat K&N drop in air filter fits a 1998-2006 Lexus GS400/LS430?K&N offers a washable, reusable High-Flow Drop-in Air Filter engineered for your 1998-2006 Lexus GS400/LS430. This filter directly replaces your factory air filter, ensuring precise fitment and an immediate upgrade. Trust in K&N’s state-of-the-art design for lasting performance and protection.How difficult 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, achieving a perfect score of 10 for its simplicity. Designed to install directly into your factory air box, it transforms your driving experience with an effortless upgrade. Enjoy enhanced engine performance with confidence.What performance outcome can I expect from a K&N drop in air filter?Experience a noticeable surge in acceleration and responsiveness, with an “Engine Performance” usage score of 9. This high-flow, oiled cotton media improves airflow, unlocking your engine’s potential. Drive with the confidence of sustained peak performance.How do I clean and maintain my K&N drop in air filter?Cleaning your K&N drop-in air filter is straightforward, maintaining its “Easy” maintenance level. Washable and reusable, it’s engineered to last for the entire lifespan of your vehicle. Proper cleaning ensures sustained peak performance and superior engine protection.Additional ResourcesOfficial K&N Engineering Product PageImportant 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”:”33-2137″,”sku”:”KNN33-2137″,”gtin”:”024844053718″,”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”:””,”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 designed for longevity. Achieves superior engine protection by capturing more contaminants with advanced oiled cotton media. Designed to provide an increase in horsepower”,”isRelatedTo”:{“name”:”Air Filters – Drop In”,”@type”:”Thing”},”alternateName”:”K&N Drop-in Air Filters Horsepower Gain”,”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