I just replaced my cabin filter with a Bosch P3682. It looked cheaper/lighter weight than the Febi/Bilstein I took out. Made me think what is the best brand of cabin filter? Or does it make any difference? I try to replace it every 20,000 miles.

FYI, This time I went 30,000 and had the usual leaves/junk and black appearance. I was also starting to get a whistle through the vents when the fan volume was on high.

Any thoughts?