Engine covers are all the same for the GTI, S3, Leon Cupra, Octavia etc with the 2.0 TFSI. Only difference is the badging/branding panel on top.
The Ed30 and S3 filters are slightly shorter in height and have an A or B at the end, and supposed to improve air flow apparently (what difference it actually makes I have no idea), otherwise the same shape.
I interchange between the standard GTI and Ed30/S3 filter depending on the cost at the time without issue. (I seem to find the ED30/S3 filter cheaper most of the time)