Treeligo Engine Air Filter EAF449003 for Silverado Tahoe Escalade Sierra s33 Treeligo engine air filter improves engine efficiency and lifespan by filtering out impurities for a smoother ride. This high-performance filter features 3-layer carbon cotton filtration to isolate particles and purify odors, contributing to better fuel economy and reduced emissions. Designed with a sealed rubber frame for an airtight fit and electrostatic cotton fiber for high-efficiency adsorption, it offers a long lifespan of up to 20,000 miles or 1.5 years. Easy DIY installation makes it a practical choice for vehicle maintenance. Measurements: • Lifespan: 20000mile/1.5 year • Part Number: EAF449003 #DIY