recognize this exhaust manifold?

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recognize this exhaust manifold?

i know it's a car manifold but as this is a worldwide site with lots of members and we bikers are a varied bunch who tend to know quite a bit collectivelyi thought i'd ask anyway.i got it off e-bay coz it looked interesting, it.s stainless with very neat welding inside and out,has parallel motion printed on each removable section.