I purchased a Dorman exhaust manifold from Amazon back in Feb of 2017.

I have not inspected it, but I hear the sounds of a cracked header, again.

I have the Brown Dog motor mounts.

I've read that ALL exhaust manifolds crack, even the 400 ones. I'd rather crack a 100 personally.

If engine movement is cracking the manifold (all of mine have been cracked at or near the collector) I was thinking about doing this.

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Has anyone had luck with an exhaust manifold NOT cracking for a few years at a time?