The most important component of your oiling system in your vehicle is the oil filter. It keeps contaminants from making their way through your engine and causing premature failure. Those small metal particles, if not trapped by the filter, would abrade all moving metal to metal connections within the engine and wear out components quickly. We know how important oil filters are, so why would anyone buy a cheap after market replacement? These units from Genuine VW/Audi are just what you need to keep that engine fresh and full of pep for many years to come. Filters out all of those terrible contaminants and makes sure they do not get back in.