I guess because its resistant to chemical, chipping, and hi-temps and ceramic is supposed to dissipate heat?? I may be wrong but that's what I though. I also had it laying around from when I painted the rotors on my Charger and also figured I try something different. Its not the end of the world if the S/C hold a bit more heat. I can scan and tune for that with HPT. I'm not trying to get every last drop of HP out of this car its my DD.