This is a four part headlight :
The Cosmetic Cover
The Reflector Bowl
The Assembly Back Cover
The only part that you need to Dremel is the reflector bowl, that is the part that the bulbs mount to. In our case the H11 base needs to be made bigger to accept the 2DS projector or a H1 projector. With the H1 there is a lot less to cut, but, I wanted a standard H.I.D. Capsule, so I decided to go with the D2S setup.
Here is the reflector bowl, I made it wider to accept the D2S projector, it was easier than you think, my Dremel ate through the plastic like butter, I kinda messed up a little bit in the circle on the left. But it is no big deal since there is room for error. But it's not too bad of an error, the projector will cover that up.