I would go with carbon filter. Anytime you have fresh air coming in it will help.
Originally Posted by trader37
Lol, sounds easy to do....
Do I order the carbon or the paper? I have a basic stock x3 without automatic controls...
Let me know if you need any pictures. Do a search and you should find some though.
My garage: 2007 BMW Z4 3.0si Manual, 2007 BMW X3, 2006 BMW 530xi
Retired: 1998 BMW Z3
Member of BMWCCA!