Hello, I know there are already reports about brake conversion, are also very helpful, but now I would still have a few questions, if someone can help me, I would be grateful. And although I have 288/15 mm unventilated brake discs at the front, but would like to convert to 312/25 mm brake discs. So it is necessary: 1. brake caliper holder of A6, C5 2. brake calipers 3. brake calipers 4. brake discs 5. rims from 16 inches My questions: – brake calipers, I need from Audi 100 C4 or A6 C4 models (2.8E or so), which have a 288/25 mm brake disc and the brake pads, right? OR!, can I also take the brake calipers of A6 C5? – Are the brake calipers of A6 C5 for 288/25 and 312/25 mm brake discs the same? or are there any differences, because the part number is different, but if you look at the used ones on the Internet, they have the same name, ATE-57 or 885, 886 right-left etc. and look the same. – If you can take brake calipers of A6 C5, pas are the brake pads of C4, because the brake lining wearers are different? – Or does this conversion only work with brake calipers for 25mm brake discs of C4 models? Greetings, Sergej