This is a continuation of the discussion seen here in this thread in the Terminator forum https://www.svtperformance.com/threads/installing-ats-brembos-on-the-cobra.1175014/ I took a different path in trying to mount these calipers without modifying the SN95 spindle. To bring everyone up to speed that is not familiar with this mod, the Cadillac ATS (not the ATS-V) features a 4-piston Brembo caliper mounted on an 11.6" rotor. WIth some slight mods, it can be made to fit the Mustang. Read the above thread to see what these mods are There were a few mods I wasn't willing to do to my car. #1 was slot the spindle. I had some concerns with how this was done, as well as preventing me from changing my calipers out in the future if I decided to get, say. Baer 6S calipers. SO I wanted to avoid that.