Multi-Layer Steel Fire-Ring Head Gasket

This gasket is intentionally designed to be 2.5mm thick, significantly more than the standard 1.2mm OEM gasket, addressing common issues with both stock and aftermarket exhaust components. Constructed from premium multi-layer steel (MLS) with a 304 stainless steel fire-ring, this gasket offers enhanced durability and sealing performance. Unlike some other exhaust gaskets that may not be fully stainless steel, GrimmSpeed's design ensures resistance to corrosion and a more reliable seal, even under demanding conditions. Its thicker profile is particularly beneficial for exhaust systems that may have minor fitment imperfections, providing a more forgiving and robust seal. Many Subaru owners have reported success using this gasket to resolve persistent exhaust leaks that OEM gaskets failed to fix. Its robust construction and thicker design contribute to a leak-free driving experience, making it a recommended upgrade for any performance-oriented Subaru build.