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Hummer
H3

Hummer H3 tuning files

1 generation and 3 engine variants. Choose the model years of your vehicle.

2006–2010 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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