I had bought a set of Powerstop X drilled with some performance friction pads. I took it easy on them for about 400miles with one panic stop from 40. That weekend I went to a 3mi mile road course and drove home limping on brakes. I torque before and after so I know it wasn't me. I called the place that I bought the rotors from and they said about 3 other people called and had the same problem... but it only seemed to be the SVTs, not sure about others...

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David Z.
Silver E1 #4808 w/stuff
http://daplace.spedia.net

David Zambrano
svt_mondeo at yahoo dot com
CSVT E1 #4808 - soon to be 400hp
You get what you pay for. All advice here is free.
http://www.geocities.com/svt_mondeo- my homepage