I have no interference issues using the Tesla EPB and the stock rear rotors.
I'm using 180° headers so I have no exhausts to contend with in the rear suspension.
I suspect that your issue stems from the switch to 1.25" thick rotors and how you needed to shim mountings to make things work?
In researching the entire project I was romanticized by the illustrations of the big Gp4 rear rotor setup but the entire concept of the Tesla EPB developed virtually overnight and redirected my thinking considerably.
It essentially enabled a practical application to what Ford did on the 1969 Boss 302 Trans Am cars. It enabled the practical use of the 1965 Mustang front brake caliper on the rear of the Pantera, because all of a sudden, there was a EPB to use that worked magnificently.
A big thick 1.25" rear rotor was no longer necessary and the stock Pantera rotor fit right into the concept.
What I missed though was the opportunity to improve the access to the Pantera rear rotor by going to this, https://www.speedwaymotors.com...set-Black,1995.html, "over the hub" rotor.
It is exactly the offset needed and in combination with the rotor it uses reduces the likeliness of over braking the rears by at least a mile.
All the offsets remain basically the same and therefore reduce or eliminate the potential interference issues back there.
I don't have time to continuously tear down and revise projects that have already been completed but admittedly, switching over the rear rotors to over the hub mountings is in the back of my mind and likely will become a compulsion at some point to do?
As I write this, I am feeling the urge now. Maybe it's just the effect of wanting to stay inside out of the summer heat? Who knows? Go figure but if anyone is contemplating this kind of a project, it would be foolish on your part to dismiss my writings as the work of a lunatic.
If all of the hardware changes aren't enough of an attraction to motivate you maybe just consider using polished stainless steel fasteners and chrome plating everything and wearing a gold dog chain necklace with WILWOOD or BREMBO as the nameplate?
After all, this business of everything needing to say WILWOOD or BREMBO is just a current passing phase and like Taylor Swift will go by the waste side eventually and you will come to your senses?