With the D2S you will no doubt have better light output but will have to make a bigger hole in the back of the housing.
The reflector will also be cut the size of the shroud and projector mounted flush to the back.
PLUS the car will need some spaces made on the radiator support and area in fender well....plastic and metal carving.
Dremel multi tool and hole saw plus a file to smooth edges, or various primitive tools.
I took my elevation adjusters out and JB welded the holes shut.
This is a D2S 3.0 retrofitters Lightwerkz did that I used for reference. The second pic has the areas highlighted in red that need cutting.
The right side is the reflector relief cut and the left is the top of the black shroud relief cut
