1990 Porsche 911. 1989 Porsche 911 Carrera 4. 1994 Porsche 911 Carrera 2 964. 1991-1994 Porsche 911 Carrera 4. 1991-1993 Porsche 911 Carrera 2. Notes: Disc Brake Rotor. Position: Rear. 100% Precision Mill-Balanced For Smoother Stopping And Zero Vibration At Any Speed.