I like the look of the Mopar Unsilenced Air Cleaner from the 60's, but I've never understood the "unsilenced". To me, it appears the top comes all the over the sides and fits fully against the bottom plate, leaving nothing open to the element. I know I must be missing something, because there's not even a snorkel to allow air to come in, and certainly nothing unsilenced with my perception of the way it fits.

Am I just being dense? Wouldn't be the first time.