ACT pressure plates have precision cover stampings to provide rigidity and consistency. For Toyota Celica (1981) - Supra 2.8 L6 GAS FI 2759cc | SOHC | Naturally Aspirated. For Toyota Celica (1982-1985) - Supra 2.8 L6 GAS FI 2754cc | DOHC | Naturally Aspirated.