Performance Chip Tuning Buick LaCrosse
10 engines · +20 to +30 hp
Buick LaCrosse: 10 engines — 10 gas. Gains run from +20 to +30 hp, with up to +37 Nm more torque. GAN GA+ from 189 EUR.
All Buick LaCrosse engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Gasoline · 10 engines | ||||
| 3.0i258 hp / 294 Nm | +30 hp+18 Nm |
GA — 199 EUR · 288 hp GA+ — 199 EUR · 288 hp |
Select → | |
| 3.6i243 hp / 311 Nm | +29 hp+37 Nm |
GA — 199 EUR · 272 hp GA+ — 199 EUR · 272 hp |
Select → | |
| 3.6i303 hp / 264 Nm | +24 hp+21 Nm |
GA — 219 EUR · 327 hp GA+ — 219 EUR · 327 hp |
Select → | |
| 3.8i200 hp / 312 Nm | +24 hp+37 Nm |
GA — 199 EUR · 224 hp GA+ — 199 EUR · 224 hp |
Select → | |
| 3.8i201 hp / 305 Nm | +24 hp+37 Nm |
GA — 199 EUR · 225 hp GA+ — 199 EUR · 225 hp |
Select → | |
| 5.3i300 hp / 438 Nm | +24 hp+35 Nm |
GA — 219 EUR · 324 hp GA+ — 219 EUR · 324 hp |
Select → | |
| 2.5 eAssist194 hp / 254 Nm | +23 hp+30 Nm |
GA — 189 EUR · 217 hp GA+ — 189 EUR · 217 hp |
Select → | |
| 2.4h182 hp / 172 Nm | +22 hp+21 Nm |
GA — 189 EUR · 204 hp GA+ — 189 EUR · 204 hp |
Select → | |
| 2.4i168 hp / 225 Nm | +20 hp+27 Nm |
GA — 189 EUR · 188 hp GA+ — 189 EUR · 188 hp |
Select → | |
| 3.0i255 hp / 292 Nm | +20 hp+23 Nm |
GA — 199 EUR · 275 hp GA+ — 199 EUR · 275 hp |
Select → | |
Each engine gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.
Not sure which engine you have?
The badge alone isn’t enough: in this generation, the same engine came with different horsepower ratings, each with its own calibration. Check the horsepower in your owner’s manual or vehicle documents and find the matching row.
Same badge, different factory power outputs in this generation:
Buick LaCrosse tune: what changes
More power and torque with no ECU flash and no new parts – the module only adjusts the engine sensor signals. Your factory warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
- Bluetoothswitch modes from your phone
- 18 mapsto fine-tune your engine

- 15 minutesplug-and-play install
- IP67water and dust protection
- +30 hpbest in this generation
3.0i 258 hp → 288 hp. The other engines gain +20 hp and up; check 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
Switch between SPORT, DYNAMIC, ECO and STOCK in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
Buick LaCrosse tuning FAQ
Which tuner do I need for my Buick LaCrosse?
Every engine in this generation is naturally aspirated, so you’ll want the GAN GA or GAN GA+. Find your engine in the table above – each row shows the tuner and the price.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU flash tune 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.