Exhaust Manifold Gasket: 91 vs. Later Years?

My local import shop sold me an exhaust manifold gasket with OEM part number 18115-P2A-003 on the packaging. The shop claimed it would fit a 91 Civic. According to
cheapesthondaparts.com and slhonda.com, this gasket fits 96-2000 Civics.
Does anyone know if the exhaust manifold gaskets are all the same from 91 - 2000 for Civics?
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