Chip Tuning Audi A6 C5 (2001–2004)
16 engines · +14 to +30 hp
Audi A6 C5: 16 engines — 10 petrol and 6 diesel. Gains range from +14 to +30 hp, with up to +44 Nm of torque. GAN GA+ from 189 EUR.
All Audi A6 C5 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 TDI178 hp / 370 Nm | +21 hp+44 Nm |
GA — 189 EUR · 199 hp GA+ — 189 EUR · 199 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 → | |
| Petrol · 10 engines | ||||
| 2.7 TFSI250 hp / 350 Nm | +30 hp+42 Nm |
GA — 199 EUR · 280 hp GA+ — 199 EUR · 280 hp |
Select → | |
| 2.7 TFSI230 hp / 310 Nm | +28 hp+37 Nm |
GA — 199 EUR · 258 hp GA+ — 199 EUR · 258 hp |
Select → | |
| 3.0 FSI220 hp / 300 Nm | +26 hp+36 Nm |
GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp |
Select → | |
| 4.2 FSI300 hp / 400 Nm | +24 hp+32 Nm |
GA — 219 EUR · 324 hp GA+ — 219 EUR · 324 hp |
Select → | |
| 2.8 FSI193 hp / 280 Nm | +23 hp+34 Nm |
GA — 189 EUR · 216 hp GA+ — 189 EUR · 216 hp |
Select → | |
| 2.4 FSI165 hp / 230 Nm | +20 hp+28 Nm |
GA — 189 EUR · 185 hp GA+ — 189 EUR · 185 hp |
Select → | |
| 2.4 FSI170 hp / 230 Nm | +20 hp+28 Nm |
GA — 189 EUR · 190 hp GA+ — 189 EUR · 190 hp |
Select → | |
| 1.8 TFSI150 hp / 210 Nm | +18 hp+25 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 2.0 FSI131 hp / 195 Nm | +16 hp+23 Nm |
GA — 189 EUR · 147 hp GA+ — 189 EUR · 147 hp |
Select → | |
| 1.8 FSI125 hp / 170 Nm | +15 hp+20 Nm |
GA — 189 EUR · 140 hp GA+ — 189 EUR · 140 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 A6 C5 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
- +30 hpbest in this generation
2.7 TFSI 250 hp → 280 hp. The other engines gain from +14 hp; see the table for each one.
- +44 Nmfor diesels
Diesels gain mainly torque: +34 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.
What Audi A6 owners say about GAN
This device woke up the vehicle...the car felt very responsive and sharp...mid range power was alot better....highway cruising was a breeze....this product..really delivered. Switching of driving modes. Ability to use on different vehicles. Low risk tuning device. Warranty was a big deal for me. Great price. Quality…
Audi A6 C5 chip tuning: questions
Which tuning module do I need for the Audi A6 C5?
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.