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Discussion Starter #1
Disclaimer: This is NOT a post about performance gains.

When I change the manifold gasket, I was thinking I might as well also change the manifold. IF the manifold was cracked I'll definitely change it but if not I'm still interested in changing it out with an aftermarket header. Is there any positives to gain with going with the aftermarket header or should I just stick with the manifold if it's not cracked?

Here's an example of what I would be looking at: Header Racing Exhaust Black L28 280Z 280ZX 75-83
 

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Weight reduction will be noticeable. Stock manifold is cast iron and is heavy. Overall HP gain might be small, but you will both reduce the weight and get more power. Win-win.
 

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Discussion Starter #3
The fact that it's cast iron makes me think it's probably not cracked at least haha. Have any personal recommendations or was my linked header sufficient?
 
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