Does anyone know what the difference between Brembos blanks that have been cross drilled and slotted at the factory vs those that have been cross drilled and slotted by a third party? How can you tell? Does Brembo even do such a thing? I mean does all rotors come blank from Brembo and then get cut someplace else.

I saw these for $246 at the link below

http://brakeworld.com/catalog.asp?pa...275&invidtype=

Then I saw these on ebay for $105

http://cgi.ebay.com/ebaymotors/ws/eB...category=33564

Other than the fact that one has more holes...is there any real difference in quality or performance ? Is the one selling for 246 actually cut at the Brembo factory?

Thanks.