Not sure which 2003 BMW 3-Series Air Intake Systems are right for you? We have over 15237 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 a 2003 BMW 330i and noticed an immediate difference. Much throatier sound and seems a little quicker. I love it!" —Thomas W from Charlotte, NC bought an aFe Cold Air Intakes for a 2003 BMW 3-Series.