Quote:
Originally Posted by johnnydg
After buying my ESS 595 kit I'm thinking about going back from HFC to OEM cats, which would require a retune I assume. Will ESS do this for free or will they charge for a new tune? Anyone have any experience with this?
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As far as I know no retune is needed. Only the 650 requires / recommends hfc or cat delete. I did not get a different tune when I install my Akra evolution with HFC.
You should be fine.