Chevy Impala Forums - View Single Post - My Trifecta Tune & a Question or Two....
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post #2 of (permalink) Old 03-16-2019
ICUBB
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Any modifications to the car would require a retune. Otherwise the aif/fuel ratio will be messed up and may actually lead to a decrease in power and response. Trifecta does offer Advantage+ and Elite version of the tune, not sure which you purchased. I only have the standard tune here as I only have stock parts but from what I gather if you have either the Advantage or Elite you can data log and send them the results and they will do a custom tune. You would have to contact them for more info than that.

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