I give up... After a dozen attempts to order the front caliper adapters from DC for the SRT6 and after getting the wrong parts repeatedly, I have finally ordered them from Mercedes and should have them in a week.

Here are some photos to amuse you... Not only does DC have the wrong part #'s listed, but these are both now listed as the front caliper adapter for the Limited... This is supposed to be the same part ?... Neither are for the SRT6 that I ordered, but the one on the right is actually for the limited and the one on the left is for God knows what... HMMM !!!

I know what the limited caliper adapters look like, I've had them off my car at least 3 times...

Oh well, I'm going to hold on to these parts until the SLK32 caliper adapters arrive and will take photos of all three together... hopefully preventing this from happening to someone else that wants to upgrade their brakes to the SRT6 spec.