3.5 ecoboost hasn't changed
I dont understand your comment?
The 3.5 ecoboost did not change in size.
That cover would fit a 2021 3.5 ecoboost expedition.
That cover pictured above is not used on a 2020 and below F-150. It is only for the 21+ F-150. It’s not hard to understand lol. Ford decided not to outfit them in the Expedition.