Not sure which 2000 BMW 3-Series Air Filters are right for you? We have over 7 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Scott K from Chalfont, PA said, "This is the first modification I make to all my vehicles. Has improved the mileage of my 2000 3-Series by almost 5 MPG. The engine feels a bit smoother too. And it's hassle free, just drop and go."