Thanks for sharing. So the filter is made by Sogefi? Haven't heard of them before. It looks a bit flimsy compared to OEM Mann/Mahle, but maybe I don't remember it correctly.
Just curious, do you get a lot of business from brand new luxury German car owners that bring in their vehicles for service to your shop?
As my work is a fleet, we have VW, Audi and Land Rover, Jaguar. We don’t have many Audi; more Mercedes and BMW. Those we are using MAHLE and WIX filters without issue.