Cylinder Base O-Ring NoBuzz Prevents Engine Damage: Detects knock

Prevents Engine Damage: Detects knock and adjusts timing to avoid detonation

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Cylinder Base O-Ring NoBuzz Prevents Engine Damage: Detects knockThe Genuine Porsche Engine Cylinder Base Gasket part number 99970739440 999 707 394 40 for Porsche is the perfect fit for your vehicles engine. Crafted with precision and excellent quality materials, this engine cylinder base gasket is designed to withstand the harsh conditions of your cars engine, giving you a reliable and long lasting performance. Made with high grade materials, this Porsche engine cylinder base gasket is guaranteed to provide a