[MightyMouseTech]

Originally Posted by Wolf 335

Dimensionally speaking, they seem to be identical.

Although dimension C is not listed on the HU8011

M2 Filter (MANN HU 8011)

E90 Filter (MANN HU 816)

Unless quality of the filtration medium is different i don't see a dereference.

When you look at the two of them, they look identical. Just one has an "M" logo on it. Must be a slightly different filter media.