Hummer Chip Tuning
Up to 12% more power for your Hummer
The Hummer catalogue lists 8 engines (models: 2, generations: 2). All Hummer engines in the catalogue are naturally aspirated, so they take the GAN GA and GAN GA+ tuning modules (up to 12% more power). Each engine’s figures are on its own page.
Hummer chip tuning without an ECU remap
More power and torque without an ECU remap or replacing any parts. The tuning module only adjusts the engine sensor signals. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
- Bluetoothsmartphone mode control
- 18 mappingsfine 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 modules for 8 naturally aspirated engines from Hummer; see the catalogue 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
Enhanced performance or 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 modules 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 chip tuning: questions
Does the GAN module 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 ECU remap: which should I choose?
An ECU remap permanently changes the maps in the ECU and leaves a trace in the flash counter. The GAN tuning module adjusts the sensor signals instead: the ECU stays in factory condition, and you can return the car to stock in about a minute.
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. You can fit it yourself, in most cases in under 15 minutes.
How to find your Hummer engine
Choose your model in the list above, then the generation by model year and chassis code, and the engine by the power output in your registration document. The engine page shows the exact gain and the tuning module price.