Fel-Pro(R) gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.. SEALING TECHNOLOGIES -- Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair. DESIGNED FOR IMPERFECT SEALING SURFACES -- Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces. STRONG AND DURABLE -- Features graphite or reinforced fiber facing material and steel armor for strength and durability. PROPRIETARY COATING -- Nonstick anti-friction coating seals small surface scratches and imperfections. NO RETORQUE DESIGN -- Steel core helps eliminate the need for retorquing head bolts. FEL-PRO HS 9717 PT-3 PermaTorque Engine Cylinder Head Gasket Set for Mazda Miata. Fel-Pro 99-00 Mazda Miata PermaTorque Engine Cylinder Head Gasket Set. PermaTorque Engine Cylinder Head Gasket Set. Head Gasket Set

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