1974-1978 Datsun 240Z 260Z 280Z ? Factory Exhaust Manifold With Heat Riser?

Manufacturer: Datsun

I'm listening this for parts are not working, I do not know what it would be required for this to be operational or if it even could. It is not new and show signs of use and age. I don't see any cracks in it but this is not mean that none exists it means I don't see any and that might very well mean that there are no cracks but I cannot say for certain. Please use the pictures to help determine the condition of this item. I am selling this item as is. I took this out of a Datsun 260Z and? In the title indicates that I'm not sure if this will fit all the years listed or the models.