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? Cometic B58 Head gasket a high-performance? Multi-Layer Xtreme (MLX) Cylinder Head Gasket manufactured by Cometic Gasket, primarily designed for the? Toyota BMW B58/B58H ?engine found in the 2020+ Toyota GR Supra and various BMW models.? Key Specifications ¡¤? Engine Compatibility: ?Toyota BMW B58/B58H (3.0L Turbo Inline-6). ¡¤? Bore Size: ?83mm. ¡¤? Compressed Thickness: ?0.036 inches (0.914 mm). ¡¤? Material: ?Multi-Layer Xtreme (MLX) / Stainless Steel. ¡¤? Number of Layers: ?3. Performance Features ¡¤? MLX Technology: ?Features an integrated "stopper" fold-over layer that provides a torque-limiting surface to prevent the yielding of combustion seals. ¡¤? Superior Sealing: ?Embossed outer layers are coated on both sides with? Viton ?(a heat-resistant fluoroelastomer), providing a micro-seal for fluids against the cylinder head and block surfaces up to 482¡ãF (250¡ãC). ¡¤? Durability: ?The multi-layer stainless steel construction is designed for high-output engines, offering excellent rebound and resistance to corrosion. ¡¤? Versatility: ?Ideal for sealing both aluminum-to-aluminum and aluminum-to-cast iron interfaces, effectively handling the shearing forces created by different materials.? Common Applications ¡¤? 2020¨C2025 Toyota GR Supra ?(A90/A91). ¡¤? BMW B58 M240/340/440 ?