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If you are building a very high output and highly boosted motor that you believe will exceed 800HP, then this is the GReddy metal headgasket for you. Thicker than the factory head gasket, which will slightly reduce compression allowing for even higher boost.

Increased horsepower means increased cylinder pressures. While the factory head gasket from Toyota has proven to be very durable these special metal reinforced head gaskets are designed to withstand the extreme temperature and cylinder pressure of an ultra high output engine