AEM Dryflow Air Filter for 07-16 Audi A4 1.8L TFSIAEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative high performance oil free filtration material that allows easy cleaning, durable service, and excellent filtration. Replacement air filters for street vehicles come with a lifetime limited warranty. Other air filters come with a one year limited warranty. This Part Fits: Year