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The EBC Premium cross-drilled rear rotor set for 1977–1990 Porsche 911 3.3T RK is offered as an OE-style disc kit for the rear axle. Drawing on EBC's Ultimax development, these rotors aim to preserve pad grip and reduce debris buildup while fitting original-style brake systems, providing a period-correct cross-drilled option for rear brake replacement on the listed Porsche models.
EBC 77-90 Porsche 911 3.3T RK Premium Cross-Drilled Rear Rotors
