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Engine tuning
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==Chip tuning== {{unreferenced section|date=December 2018}} {{main|Chip tuning}} Modern engines are equipped with an [[electronic control unit|engine management system]] (EMS)/Engine Control Unit (ECU) that can be adjusted to different settings, producing different performance levels. Manufacturers often produce a few engines that are used in a wider range of models and platforms. This allows the manufacturers to sell automobiles in various markets with different regulations without having to spend money developing and designing different engines to fit these regulations. This also allows a single engine tuned to suit the particular buyer's market to be used by several brands.
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