I don't have a 'small turbo 4 banger' but my N/A three-cylinder XFi has a shift light that prompts you to short shift. Any tachometer with a shift light should give the same functionality.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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