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Smart
ForFour

Smart ForFour tuning files

2 generations and 6 engine variants. Choose the model years of your vehicle.

2004–2014 3 engines
2014+ 3 engines

Handmade ECU & TCU tuning files for tuners and workshops. Powered by ECUFAST USA.

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Some operations are intended for off-road and motorsport use only. You are responsible for complying with the laws where the vehicle is used. Read our off-road use policy.

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