GAN tuning modules · up to +30% power

Chip Tuning Hummer H3

5 engines · +24 to +29 hp

up to +30%power with GAN GT
up to 15%fuel savings
up to 2 yearsengine warranty
50 daystest drive

In short

Hummer H3: 5 engines — 5 petrol. Gains range from +24 to +29 hp, with up to +39 Nm of torque. GAN GA+ from 199 EUR.

engines

5 petrol

+29hp

best in this generation: 3.7i 239 → 268 hp

gain range +24…+29 hp

+39Nm

max torque gain

3.7i, GA+

from 199EUR

tuning module price

GAN GA from 199 EUR · GAN GA+ from 199 EUR

Power gains

All Hummer H3 engines: exact gains

STOCK output, output with GAN, gain and price for each module.

Engine	STOCK → with GAN	Gain	Tuning modules and prices
Petrol · 5 engines
3.7i239 hp / 328 Nm	239 hp268 hp / 367 Nm	+29 hp+39 Nm	GA — 199 EUR · 268 hp GA+ — 199 EUR · 268 hp	Select →
3.7i242 hp / 327 Nm	242 hp271 hp / 366 Nm	+29 hp+39 Nm	GA — 199 EUR · 271 hp GA+ — 199 EUR · 271 hp	Select →
3.5i223 hp / 305 Nm	223 hp250 hp / 342 Nm	+27 hp+37 Nm	GA — 199 EUR · 250 hp GA+ — 199 EUR · 250 hp	Select →
5.3i300 hp / 433 Nm	300 hp324 hp / 468 Nm	+24 hp+35 Nm	GA — 219 EUR · 324 hp GA+ — 219 EUR · 324 hp	Select →
5.8i300 hp / 434 Nm	300 hp324 hp / 469 Nm	+24 hp+35 Nm	GA — 219 EUR · 324 hp GA+ — 219 EUR · 324 hp	Select →

stock powergain with GAN

Each engine has its own tuning module: GAN GT / GTL or GAN GA / GA+. Prices are per tuning module and include the current discount.

Not sure which engine you have?

The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.

Same badge, different factory power outputs in this generation:

3.7i 239 / 242 hp

GAN tuning module for the Hummer H3

Hummer H3 tuning: what changes

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

+29 hpbest in this generation
3.7i 239 hp → 268 hp. The other engines gain from +24 hp; see the table for each one.
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.

Prices for the Hummer H3

GAN GA / GA+ from 199 EUR

Find your engine in the table

Questions

Hummer H3 chip tuning: questions

Which tuning module do I need for the Hummer H3?

All engines in this generation are naturally aspirated, so you need the GAN GA or GAN GA+. Find your engine in the table above: each row shows the module and the price.

Is a tuning module the same as a Stage 1 tune?

Not quite. Stage 1 usually means an ECU remap without replacing any parts. The tuning module also works without replacing parts, but it does not change the ECU software: it adjusts the sensor signals, comes off in about a minute, and the OFF button in the app restores the factory settings.