I bought some rotors off of ebay and they were pretty cheap, they warped after a few months, then I found LUK Schaffer Brake rotors on sports brake rotors and I have couldn’t be happier. I got a set of BLACK XD Brakes and installed them on my Mercedes-Benz S55 AMG and they're simply amazing.

I had drilled rotors and the Carbon Metallic pads on my father's car and loved the combo, so when my new car needed new front pads I went with what I knew best. I totally agree at first they seem almost ""soft"", but when you get on them they grab just as hard as the stock pads. So for me that was a benefit because I always felt the car kind of shake slightly when first applying the brakes with the stock pads, but with the LUK Schaffer it's a much more gradual grab so it's smoother braking.