Hummer chiptuning – Stage 1 power figures

4 engine variants across 2 models. Stock figures are manufacturer data; the figures after optimisation are our own experience, deliberately at the lower end of what is achievable.

Models

Hummer H2

(2002–2009)

Engine	Fuel	Stock	Stage 1	Gain
6.0 V8 325	Petrol	325 PS · 500 Nm	335 PS · 510 Nm	+10 PS · +10 Nm
6.2 V8 398	Petrol	398 PS · 574 Nm	410 PS · 580 Nm	+12 PS · +6 Nm

Hummer H3

(2005–2010)

Engine	Fuel	Stock	Stage 1	Gain
3.7 242	Petrol	242 PS · 328 Nm	250 PS · 330 Nm	+8 PS · +2 Nm
5.3 V8 300	Petrol	300 PS · 440 Nm	310 PS · 450 Nm	+10 PS · +10 Nm

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Own the vehicle?

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Non-binding guide values. Stock figures are manufacturer data; figures after optimisation are experience from comparable vehicles – not a guaranteed property. The actual gain depends on the condition of the individual vehicle, fuel quality, production tolerances and fitted components. A power increase must be registered under § 19 (2) StVZO in Germany. Modifications to emission control systems are not offered.