Chiptuning Audi A4 B9 Facelift (since 2019)
4 engines · +40 to +45 hp
Audi A4 B9: 4 engines — 4 petrol. The gain is +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
Standard output, output with GAN, the gain and the price for each box.
| Engine | STOCK → with GAN | Gain | Tuning boxes and prices | |
|---|---|---|---|---|
| Petrol · 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 has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box 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:
Audi A4 B9 remap: what changes
The GAN box plugs in between the sensors and the engine control unit (ECU) and adjusts their signals, while a flash remap rewrites the ECU itself. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.
- Bluetoothchange modes from your phone
- 18 mapsfine-tuning for your engine
- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +45 hpbest in this generation
45 TFSI 265 hp → 310 hp. The other engines gain at least +40 hp; 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
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
Audi A4 B9 remap: common questions
Which tuning box do I need for the Audi A4 B9?
Every engine in this generation is turbocharged, so it takes the GAN GT or GAN GTL. Find your engine in the table above – each row shows the box and its price.
Is a tuning module the same as a Stage 1 remap?
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.