Hey guys I picked up 2 intake manifolds awhile back and planned on cleaning them up to swap one of them onto my j35 however I don’t know which would be the better manifold or what car they came from I know they’re both j37s but not sure if they’re from a tl or mdx, the top plate on the #2 manifold doesn’t even feel like metal kind of hard to explain but any help is appreciated on what cars they came from and which should be used for a swap

**Edit** Knowing the cars they go to would be a great help as I have to buy new gaskets for them anyway

 

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If you use image search, on google, the research should help you get in the 'ball park' from the data available.

 

they both are magnesium (Mg) cast into both manifolds. Is the diameter for the throttle bodies the same?