The Cometic Subaru FA20 2.0L DOHC 89.5mm Bore .050in MLX Head Gasket LHS - C4589-050 is a precision-engineered head gasket with a 89.5mm bore and .050" compressed thickness for the Left-Hand Side (LHS).
The Cometic MLX Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring MLX Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers for superior sealing under extreme cylinder pressures and temperatures. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.
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Material: MLX Multi-Layer Steel (MLS)
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Bore Size: 89.5mm
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Thickness: .050" compressed
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Position: Left-Hand Side (LHS)
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Part Number: C4589-050
Verified fitment: Scion FR S (2013–2016); Subaru BRZ (2013–2020); Toyota 86 (2017–2020).