David-
GREAT POINT!
This is one of the many reasons why we, APEX Motorsports, choose to use and install STOPTECH brake systems on our cars and our customer's cars. We keep their whole line in stock, including upgraded rotors and lines, 2-wheel kits, and 4-wheel kits.
We have even worked with StopTech so we can offer a SPECIAL 13" 4-wheel kit for people using Stock/Aftermarket 17" wheels. We just installed this SPECIAL kit on Ron Coleman's car, a frequent VIPER DAY participant.
If anyone has any questions about their kits, or interested in these great systems, you can call me at 408.562.1000.
Thanks!
-Wayne