Hello Yethal,
Yes, those are the ones.
On each cup there is this circular plastic piece that sticks out in the middle that you'll need to get ride of before you can fit the drivers inside, but nothing needs to be done with the drivers. The best/cleanest way to remove that circular plastic piece is with a pair of pliers. When using the pliers just squeeze and twist and it comes off cleanly, mich better than when I tried to use a dremel. Aside from that there are a few other modifications that can be done for better sound quality. I've already made them for myself, but I have not begun selling them as a mod kit quite yet. The mod cleans up the treble, and gives and immense increase to the soundstage imaging. If that sounds like something that you're interested in after you have done the driver implant, then let me know.
You can also try out different earpads. The two that I'd recommend would be the
Dekoni memory foam leather earpads and the
Audeze LCD sheepskin earpads. The Dekoni earpads are softer, smaller (if you don't like big earpads), cheaper, and more isolated; the Audeze earpads are much bigger and angled which is better for soundstage imaging. They both are relatively comfortable, so there really isn't a major deal breaker there. Though, if you are planning to get the Audeze earpads, then here's a guide on how to modify them to fully/tightly fit the COP: http://www.head-fi.org/t/780786/audeze-earpad-mod-for-beyerdynamic-heaphones
Best Regards,
Lyova Margaryan of Tru-Fi Speakers