I have replaced the front discs and pads on my 2003 CMAX due to a bad vibration when braking. On taking the disc off I found that the inside face to both disc were very badly corroded about 15mm inward from the outside edge and about 10mm from the inner edge. The pads were also very badly grooved. I thought the braking wasn’t very good. I have replaced them with EBC Green Stuff Pads and discs. I am still in the bedding in period but they are very good.