Jet hot makes some pretty strong claims and there are other newer coatings. I got a quote for 300 bucks on my stock explorer 5.0 manifolds. my thoughts were, it would be worth it if it kept the engine bay and toe boards cooler? anybody got any real world experience with heat in the engine bay and coatings? i am not interested in after market headers, the manifolds fit great and do what i need them to do.
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