Go to the C32 brake upgrade, read all 200+ post, mine are the last few pages, the CLK 500 front conversion, a how to with photos, also there are early post about the more stock upgrades. I also posted a rear brake upgrade that would put the 300mm rear disk on a NA and they will be vented instead of solid. That should answer all you questions. All the info you need about this car you will find on this form!