High-temperature collector gaskets featuring a steel expanded-metal core with graphite-impregnated facing for exceptional heat resistance and durability. The steel core maintains stability under torque to prevent leakage, while the graphite layer provides excellent thermal conductivity to move heat away from the sealing surface. Designed to withstand extreme exhaust temperatures, resist deterioration, and offer anti-stick properties for easier removal during service. Ideal for performance engines requiring a long-lasting, reliable exhaust collector seal.