@skyhighsami
Are you referring to the Brembo caliper off of say a 2009 Cobalt SS?
If so then it’s a fixed caliper and a bracket could be made. The only problem I can see would be the backing plate will need to be clearanced. 1) for the caliper and 2) because if the caliper doesn’t magically bolt up to the axle like your factory 2 piston caliper your bracket will rotate the caliper to clear the bolts. If you look at most big brake kits they have a flat plate with 4 bolt holes.
I was thinking of using the 1st gen CTS-V front calipers on Baer’s 14” rear setup.