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In very general terms, across most mainstream manufacturers the tune out of the factory has to be conservative to cover a range of gas quality, altitude, weather conditions, driving styles, emissions regulations etc... plus to protect engine components from additional strain. Note that some changes will have an effect on the ingredients of exhaust gas, ...


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It’s a fairly broad question so I’ll give a fairly broad answer: chip tuning, as the name suggests, means reprogramming the ECU and may or may not be done alongside other modifications. Typically an increase in performance will result in a loss somewhere - most likely engine life and fuel consumption. For an aftermarket tuner to add 20hp without ...


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