Chiptuning Hummer
Up to 30% more power for your Hummer
Our Hummer catalog covers 8 engines (models: 2, generations: 2). All Hummer engines in the catalog are naturally aspirated, so they take the GAN GA and GAN GA+ tuning boxes (up to 12% more power). Each engine’s figures are on its own page.
Hummer plug-in remap: no changes to the ECU software
More power and torque without rewriting the ECU or replacing any parts. The tuning box only adjusts the engine sensor signals. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.
- Bluetoothchange modes from your phone
- 18 mapsfine-tuning for your engine
- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- up to +12%with the GAN GA+ on naturally aspirated engines
GAN GA and GAN GA+ tuning boxes for 8 naturally aspirated engines from Hummer; see the catalog for each engine’s figure.
- up to +30%more power
GAN GT: up to 30%, GAN GTL: up to 25%, GAN GA+: up to 12%.
- GAN APPpower control via smartphone
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
The biggest Hummer gains
The six engines with the biggest gains in our catalogue. These are not typical figures but the top of the range.
| Model · generation | Engine | Fuel | STOCK | With GAN | Gain | Tuning boxes and prices |
|---|---|---|---|---|---|---|
| H2 H2 | 6.2i | Petrol | 409 hp / 563 Nm | 442 hp / 608 Nm | +33 hp | |
| H2 H2 | 6.2i | Petrol | 393 hp / 563 Nm | 424 hp / 608 Nm | +31 hp | |
| H3 H3 | 3.7i | Petrol | 239 hp / 328 Nm | 268 hp / 367 Nm | +29 hp | |
| H3 H3 | 3.7i | Petrol | 242 hp / 327 Nm | 271 hp / 366 Nm | +29 hp | |
| H3 H3 | 3.5i | Petrol | 223 hp / 305 Nm | 250 hp / 342 Nm | +27 hp | |
| H2 H2 | 6.0i | Petrol | 321 hp / 488 Nm | 347 hp / 527 Nm | +26 hp |
Hummer remapping: questions
Will a tuning box affect my Hummer warranty?
Your manufacturer’s warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
Tuning box or remap: which should I choose?
A flash remap permanently rewrites the maps in the ECU and leaves a trace in the flash counter. The GAN tuning box adjusts the sensor signals instead: the ECU stays in factory condition, and you can return the car to stock in about a minute. A flash remap can be the better choice if the engine has upgraded hardware, or if the car is out of warranty and you accept the risks.
Hummer chip tuning: what to know about the engines
Naturally aspirated Hummer engines
For 8 naturally aspirated engines from Hummer, there is the GAN GA+: up to 12% more power and up to 15% lower fuel consumption in ECO mode, which means better MPG. You can fit it yourself, in most cases in under 15 minutes.
How to find your Hummer engine
Pick your model from the list above, then the generation by model year and chassis code, then the engine by the power output in your registration document. The engine page shows the exact gain and the price of the box.