Review on ACDelco 177 892 Original Equipment Front by Bill Forbis

I paid twice as much for these rotors hoping they would solve my pulsation problems. 7000 km driven normally. I left the car for a week after driving in the snow. Came back to find extreme ripple; possibly salt residues on the rotor. The pulsation slowly subsided, but did not completely disappear after another 1000 km. It doesn't appear to be a solution for smooth long-term braking. Update: Rating increased to 4 stars. The previous pulsation has practically disappeared after more than 10,000 miles. In my experience in the past, with cheaper rotors, once there was a pulsation problem, the pulsation gradually increased until the rotors had to be replaced or reversed. I would buy these rotors again. Worth the extra $$