Not sure which 2006 BMW 3-Series Air Filters - Custom Fit is right for you? We have over 12082 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've seen the ping-pong ball display demonstrating the difference between the K&N and other filters but wasn't convinced until I installed one in my car. It's as if I removed an obstruction in the car's breathing process. I was so impressed I installed one in my truck and one in each of my daughters cars. Thank you K&N." —Michael C from Medford, OR bought a K&N Air Filters for a 2006 BMW 3-Series.
"I installed a K&N filter on my 2006 BMW 330i and the increase in torque between 1500-4000 rpm was instantly apparent. I also removed the stock carbon filter which was only designed to help catch emission fumes. I trust that the k&n filter will keep my engine clean. The filter fit the OEM box perfectly. Overall I'm extremely happy with my purchase." —Adam A from Etna, WY bought a K&N Air Filters for a 2006 BMW 3-Series.
"Drop in installation. Quality of product seemed excellent. I've got to assume it's doing it's job. Will save me money over the life of the vehicle versus replacing with disposable filters. Better for the planet also." —Henry T from Bumpass, VA bought an aFe Pro-Dry S Air Filters for a 2006 BMW 3-Series.
"Installed replacement filter in 2006 BMW 325i. Filter seemed to be good quality; heavy compared to paper filter. The housing took a bit of time to remove & re-install(I took about 45 min. but was being slow & careful. Reqires T25 Torx driver). No problems, running well after install." —Tom H from Modesto, CA bought a K&N Air Filters for a 2006 BMW 3-Series.
"I've bought a K & N air filters for evey car I've owned since the age of 18. I'm over 40 now if that says anything. Love my K & N." —Chris L from Dallas, TX bought a K&N Air Filters for a 2006 BMW 3-Series.