I have an E39 M5 (2000) and I noticed when I was cleaning my air filters that one side had this "thing" and the other didn't. Its a sort of cylindrical shaped plastic with a flutted end that attaches inside the airbox above the filter. I guess to create some sort of air vortex. Anywho the dealer couldn't find this as a separate part. Any help whould be great.
Worst case scenerio I could upgrade the entire air intake system
Bookmarks