K&N Engineering Drop-In High-Flow Washable Air Filter 33-5040

K&N Engineering Drop-In High-Flow Washable Air Filter 33-5040 Upgrade airflow. Increase performance. The K&N 33-5040 is a drop-in, washable high-flow air filter engineered with layered, oiled cotton media to improve airflow while effectively capturing contaminants. Designed for easy installation into your factory air box, it delivers performance gains without modification. Key Benefits Improved horsepower & throttle response — optimized media increases airflow for better engine breathing. Washable & reusable — lasts the life of your vehicle when cleaned and maintained properly. Cost-effective — eliminates disposable filter replacements, reducing long-term maintenance cost. Simple drop-in fit — direct replacement for factory filters, no modifications required. Backed by warranty — covered by K&N’s 10-Year/Million Mile Limited Warranty for confidence and reliability. Why Choose K&N 33-5040 Engineered for enthusiasts and everyday drivers alike, the 33-5040 combines high-flow performance with durable construction. The layered, oiled cotton media is tuned to maximize airflow while trapping dust and debris, helping your engine run cleaner and perform better over time. Perfect for: drivers seeking an easy performance upgrade, reduced long-term costs, and a reliable, long-lasting air filtration solution.