Tune needed? posted by TTwinTTurboZ on June 22, 2021 at 11:22 PM
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ballpark, but usually leave room on the table for power. Elevation & fuel quality also play a role. You should be fine assuming your ECU is tuned for your injector size. Fair warning though, the Ash-spec tunes tended to run a bit more on the leaner side in the past, how I'm unsure what they look like these days. You may want to get a wideband O2 installed just to be sure.
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