Performance Chip Tuning Buick
Up to 30% more power for your Buick
The Buick catalog lists 40 engines (models: 11, generations: 11). For 8% of the engines, there are the GAN GT (up to 30% more power) and GAN GTL (up to 25%) tuning modules; for 37 naturally aspirated engines, the GAN GA and GAN GA+ (up to 12%). Each engine’s figures are on its own page.
Buick performance chip: more power, no ECU flash
The GAN module sits between the sensors and the engine control unit (ECU) and adjusts their signals. Unlike a flash tuner, it doesn’t rewrite your ECU software: your factory warranty is preserved, 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
- up to +30%more power with the GAN GT
Turbo engines pick up +44 to +46 hp, depending on the engine.
- up to +12%for naturally aspirated engines with the GAN GA+
GAN GA and GAN GA+ tuning modules for 37 naturally aspirated engines from Buick; see the catalog for each engine’s figure.
- 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.
Choose your Buick model
Each model lists its generations: one click gets you to a generation, two to an engine.
The biggest Buick gains
The six engines with the biggest gains in our catalog. These are the top of the range, not typical figures.
| Model · generation | Engine | Fuel | STOCK | With GAN | Gain | Tuners and prices |
|---|---|---|---|---|---|---|
| Regal Regal | 2.0 T | Gasoline | 218 hp / 350 Nm | 264 hp / 424 Nm | +46 hp | GTL from 249 EUR GT from 399 EUR |
| Regal Regal | 2.0 T GS | Gasoline | 272 hp / 400 Nm | 318 hp / 468 Nm | +46 hp | GTL from 249 EUR GT from 399 EUR |
| Verano Verano | 2.0 T | Gasoline | 258 hp / 353 Nm | 302 hp / 413 Nm | +44 hp | GTL from 249 EUR GT from 399 EUR |
| LaCrosse LaCrosse | 3.0i | Gasoline | 258 hp / 294 Nm | 288 hp / 312 Nm | +30 hp | |
| Rendezvous Rendezvous | 3.6i | Gasoline | 247 hp / 315 Nm | 277 hp / 353 Nm | +30 hp | |
| LaCrosse LaCrosse | 3.6i | Gasoline | 243 hp / 311 Nm | 272 hp / 348 Nm | +29 hp |
Buick tuning FAQ
Does the GAN module affect my Buick factory warranty?
No. The module doesn’t change the ECU software and can be removed at any time, so your factory warranty is preserved. On top of that, GAN gives its own engine warranty: 2 years with the GAN GT, 1 year with the GAN GTL.
Plug-in performance chip or flash tuner: which should I choose?
A flash tuner rewrites the maps in your ECU, and the flash counter records it. The GAN module adjusts the sensor signals instead: the ECU stays in factory condition, and you can return the car to stock in about a minute.
Buick engines: what to know before you tune
Which Buick models are in the catalog
The catalog lists 11 models from Buick. The most engines are listed for the LaCrosse (10), Lucerne (5) and Regal (5). The biggest gain among the models is on the Regal: up to +46 hp.
Naturally aspirated Buick engines
For 37 naturally aspirated engines from Buick, there’s the GAN GA+: up to 12% more power and up to 15% better fuel economy in ECO mode. It’s plug-and-play: you can install it yourself, in most cases in under 15 minutes.
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How to find your Buick engine
Pick your model in the list above, then the generation by model year, and the engine by displacement and horsepower (see your owner’s manual or vehicle documents). The engine page shows the exact gain and the tuner price.