Not sure which 2004 BMW 5-Series Air Filters are right for you? We have over 14810 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:
"I just installed it on my Audi A5 2.0T and I love it. You hear the turbo spooling a lot better and you will also notice a slight power increase." —John M from Burbank, CA bought a K&N Air Filters for a 2004 BMW 5-Series, Turbocharged 2.0L 4-cyl. engine.