[QUOTE]Originally posted by haasman
The second-generation cross-drilled rotors had chamfered edges around the holes that all but eliminated the problem and is what one sees now on all cross-drilled rotors.
I read an article by Brembo about cross-drilled rotors.
In that article it was stated " if the rotors are cast with holes, there is no cracking problem ".
Unfortunately, many " tuners " buy regular rotors, cross-drill them, mark up the price, and sell them to an unsuspecting public ( at least until somebody sues the a.. off them.
I run Zimmerman cross-drilled rotors and love them.