Performance Chip Tuning Audi A4 B9 Facelift (since 2019)
4 engines · +40 to +45 hp
Audi A4 B9: 4 engines — 4 gas. Gains run from +40 to +45 hp, with up to +78 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR.
All Audi A4 B9 engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Gasoline · 4 engines | ||||
| 45 TFSI265 hp / 370 Nm | +45 hp+63 Nm |
GTL — 249 EUR · 302 hp GT — 399 EUR · 310 hp |
Select → | |
| 35 TFSI150 hp / 270 Nm | +44 hp+78 Nm |
GTL — 249 EUR · 188 hp GT — 399 EUR · 194 hp |
Select → | |
| 45 TFSI245 hp / 370 Nm | +42 hp+63 Nm |
GTL — 249 EUR · 279 hp GT — 399 EUR · 287 hp |
Select → | |
| 40 TFSI190 hp / 320 Nm | +40 hp+67 Nm |
GTL — 249 EUR · 224 hp GT — 399 EUR · 230 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:
Audi A4 B9 tune: what changes
The module plugs in between the sensors and the engine control unit (ECU) and adjusts their signals. It never rewrites 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
- +45 hpbest in this generation
45 TFSI 265 hp → 310 hp. The other engines gain +40 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.
Audi A4 B9 tuning FAQ
Which tuner do I need for my Audi A4 B9?
Every engine in this generation is turbocharged, so you’ll want the GAN GT or GAN GTL. 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.