Not sure which 2005 BMW 5-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 have had them on my Viper for 5 years and have just put them on my Crossfire and BMW. They are giving me better performance and mileage. I recommend them to my car guy friends without hesitation." —Rich B from Trabuco Canyon, CA bought a K&N Air Filters for a 2005 BMW 5-Series.
"I purchased the squared K&N air filter on my wife daily driver and I thought I could tell instantly, so the first time she drove it she definitely noticed much improved throttle and gas results. My wife do not notice much about the car performance normally. KSo I say, You don't say!" —Freddy J from Bowie, MD bought a K&N Air Filters for a 2005 BMW 5-Series.