Chip Tuning Audi A4 B6 (2001–2005)
15 engines · +12 to +26 hp
Audi A4 B6: 15 engines — 9 petrol and 6 diesel. Gains range from +12 to +26 hp, with up to +44 Nm of torque. GAN GA+ from 189 EUR.
All Audi A4 B6 engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning modules and prices | |
|---|---|---|---|---|
| Diesel · 6 engines | ||||
| 2.5 TDI180 hp / 370 Nm | +22 hp+44 Nm |
GA — 189 EUR · 202 hp GA+ — 189 EUR · 202 hp |
Select → | |
| 2.5 TDI163 hp / 350 Nm | +20 hp+42 Nm |
GA — 189 EUR · 183 hp GA+ — 189 EUR · 183 hp |
Select → | |
| 1.9 TDI131 hp / 285 Nm | +16 hp+34 Nm |
GA — 189 EUR · 147 hp GA+ — 189 EUR · 147 hp |
Select → | |
| 1.9 TDI131 hp / 310 Nm | +16 hp+37 Nm |
GA — 189 EUR · 147 hp GA+ — 189 EUR · 147 hp |
Select → | |
| 1.9 TDI116 hp / 285 Nm | +14 hp+34 Nm |
GA — 189 EUR · 130 hp GA+ — 189 EUR · 130 hp |
Select → | |
| 1.9 TDI101 hp / 250 Nm | +12 hp+30 Nm |
GA — 189 EUR · 113 hp GA+ — 189 EUR · 113 hp |
Select → | |
| Petrol · 9 engines | ||||
| 3.0 FSI220 hp / 300 Nm | +26 hp+36 Nm |
GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp |
Select → | |
| 1.8T170 hp / 225 Nm | +20 hp+27 Nm |
GA — 189 EUR · 190 hp GA+ — 189 EUR · 190 hp |
Select → | |
| 1.8T quattro163 hp / 225 Nm | +20 hp+27 Nm |
GA — 189 EUR · 183 hp GA+ — 189 EUR · 183 hp |
Select → | |
| 2.4 FSI170 hp / 230 Nm | +20 hp+28 Nm |
GA — 189 EUR · 190 hp GA+ — 189 EUR · 190 hp |
Select → | |
| 3.2 FSI255 hp / 330 Nm | +20 hp+26 Nm |
GA — 199 EUR · 275 hp GA+ — 199 EUR · 275 hp |
Select → | |
| 1.8T150 hp / 210 Nm | +18 hp+25 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 2.0 FSI150 hp / 200 Nm | +18 hp+24 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 2.0 FSI130 hp / 195 Nm | +16 hp+23 Nm |
GA — 189 EUR · 146 hp GA+ — 189 EUR · 146 hp |
Select → | |
| 1.6 FSI102 hp / 148 Nm | +12 hp+18 Nm |
GA — 189 EUR · 114 hp GA+ — 189 EUR · 114 hp |
Select → | |
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:
Audi A4 B6 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
- +26 hpbest in this generation
3.0 FSI 220 hp → 246 hp. The other engines gain from +12 hp; see the table for each one.
- +44 Nmfor diesels
Diesels gain mainly torque: +30 to +44 Nm.
- 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.
Audi A4 B6 chip tuning: questions
Which tuning module do I need for the Audi A4 B6?
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.