I wouldn't trust them on my 01 Firebird. Recycling is low compared to A1 Cardone or AC Delco. The powder coating is chipped, fish eyed and poorly prepared. The original anti-squeak rubber compound has been powder coated and the pistons look sandblasted. The only thing that looks good is the color and trim. I ordered s4696's which are in the back and they weren't much better. Best of all, there's no packing material to keep the calipers from rattling. I ended up buying a complete recovery kit to do it myself. At least I know where my gear was.