There wasnt a CTS-V in 2008, that was the first year of the CTS redesign, no V-Series variant.
For the above posted numbers, the 316mm JE5 disc is standard on all trims of CTS in 2008 (and beyond). The 345mm J55 disc is the disc that comes in the Y43 Performance package on regular CTS.
The <2007 CTS-V Brembo brakes I believe 355 front and 365 rear.
For the 2009 CTS-V Brembo front disc, you are looking for 380x32 mm. Rears are 373x28mm.
Last edited by rokketride; 02-04-2010 at 11:35 AM.
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