These discs and pads were purchased for my 1994 Z28 to replace the stock brakes. Once broken in, these rotors and pads are fantastic. There's no noticeable noise when the brakes are applied, but I've found that they work much better when they're hotter than cold. I've driven the car a few hundred miles and so far it's not too dusty. I don't think I would put them on my 3/4 ton Duramax but for a sports road car they are great.