K&N Dryflow® combines everything you love about a K&N Cold Air Intake System (guaranteed increase in horsepower & torque, premium engine protection and the reliability of a Made in the USA product) with the convenience of a non-oiled air filter. K&N Dryflow filters have 2 layers of premium, pleated, synthetic media to help block dirt and dust particles. But best of all- they provide easy maintenance with one step cleaning every 50,000 miles under normal highway driving conditions. No oil means a simpler cleaner process, just wash, re-use and get back on the road faster. Replacement Air Filter: RU-3101HBK Vehicle Fitment: 2019-2023 CHEVROLET Silverado 1500; 2019-2023 GMC Sierra 1500; 2021-2023 GMC Yukon XL; 2021-2023 GMC Yukon; 2021-2023 CHEVROLET Tahoe; 2021-2023 CHEVROLET Suburban; 2021-2023 CADILLACE Escalade ESV; 2021-2023 CADILLACE Escalade