Not sure which 2008 BMW 5-Series 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:
"I have used K&N air filters in all of my vehicles since 1989. I find that they tend to smooth out the feel of the car or truck, provide slightly better fuel economy and just a bit better performance. What else could you ask for at these prices? HM" —Hal M from Knoxville, TN bought a K&N Air Filters for a 2008 BMW 5-Series, 535i, 3.0L 6-cyl. engine.
"When I installed this filter upon recommendation from a friend I didn't really expect the performance boost that was advertised. However I immediately noticesd an increase in pickup. Thanks K&N" —Ray M from Norwalk, CA bought a K&N Air Filters for a 2008 BMW 5-Series.