I went through this with the Brembo rep at Buttonwillow Raceway in Cali.
They are never gonna make one for our cars for two reasons.
First, the rear brakes see minimal use in our cars, and second the e-brake system is incorporated into our rear calipers meaning they would have to engineer their parts to work WELL with the factory systems.
I argued with them for quite some time about it. I have searched for a nice rear set of calipers, but everyone says the factory cobra rears are the best available at this point.
If you do find something other than the Baer kit, please let me know.