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Reply to "ROLL CALL: Jethot Coatings @ 500HP"

I have seen the shiny ceramic coating dull on a 400hp engine.  The coating became dull during dyno tuning of the EFI system.  I showed it to the shop that did the coating and they offered to redo it.  He said it is best to dyno tune first and then coat the exhaust.  He said that he rarely sees any issues outside of dyno tuning.

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