Rotors are excellent and already appear to have swirl marks as if pre-machined/ground to prevent squeaking. but the pads on my car are definitely screaming. You can't hear them in a car with the windows open, but you can easily hear them with the windows down. I tried re-lubricating the metal parts that were rubbing, but it definitely ended up being a pad issue. I had to go into the auto zone and change all the pads. So now I have no more money. I would send them back but the rotors are excellent. I would like to point out that I am a mechanic with 18 years of experience and this was by no means a plumber issue. In the end I give the rotors a 5 and the pads a C because they didn't defend loudly but could be heard quite loudly. But not on F because they stopped the car. Also wanted to mention I've been driving these for 1 week to give them some time to use and hope the squeak goes away but it has only gotten worse. The rotors were cleaned with wax and grease remover and sanded with 240 grit sandpaper but still made noise. The pads are bad with this kit.