Not sure which 2004 Volkswagen Passat Air Filters - Custom Fit is right for you? We have over 14143 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"PEOPLE, there is no excuse for not installing a K&N air filter. What don't you want? better performance, better acceleration, more power, better gas mileage? all for $50.00 and you never have to buy an air filter again. Woe to the fool who doesn't pick one up." —Kristian M from Sarasota, FL bought a K&N Air Filters for a 2004 Volkswagen Passat.