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This Cometic MLS head gasket is for Subaru STI EJ257 2.5L with a 102mm bore and .040" thickness, engineered as a multi‑layer steel gasket. MLS construction combines embossed AMP‑coated outer layers with an uncoated stainless center shim to handle varied sealing environments. The design reduces clamp load, helps distribute sealing load across the head, and suits high‑duty ring and bore conditions.
Cometic STi EJ257 2.5L 102mm bore .040 inch thick MLS Head Gasket
