Not sure which 2006 Audi A4 Air Intake Systems are right for you? We have over 20796 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:
"Easy to install (about an hour), looks good, fits good. Performance improvement slight - I got this because I have an upgraded intercooler, high flow cat and exhaust.
Besure to put silicon sealant on air box screws otherwise air will get into your engine without going thru the filter." —Greg M from Wilmington , DE bought an aFe Cold Air Intakes for a 2006 Audi A4.