PROTECTS YOUR ENGINE K&N’s state-of-the-art filter features thousands of microscopic cotton fibers, and an innovative design of layered, oiled cotton media helps to capture dirt and shield your engine from contaminants. Each filter design is tested in an ISO 5011 laboratory to ensure excellent filtration efficiency for outstanding engine protection. K&N Engine Air Filter: Reusable, Clean Every 75,000 Miles The premium filter design incorporates multiple layers of proprietary cotton gauze media and a specially-engineered oil, originally designed for the demands of the racetrack, and now custom-engineered for your vehicle. WASHABLE, REUSABLE, AND ENGINEERED TO LAST K&N engine air filters are designed to be washable, reusable, and last for the life of your vehicle. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. K&N 33-2346 High-Flow Air Filter Washable Lifetime 2005-2011 Hyundai Open Box ; Detailed seller ratings. Average for the last 12 months. Accurate description Tested, proven, and trusted for over 50 years, millions of drivers rely on K&N air filters to help protect their engines from premature wear. View testing data for many K&N filters on individual product pages. ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. 33-2346 Filter K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2005-2011 HYUNDAI (Azera, Grandeur, Sonata, Sonata V) , 33-2346 Washable Reusable Air Filter 33-2346 EASY INSTALLATION: Pre-oiled and ready to drop into your factory air box.