Performance Chip Tuning Audi A8 D3 (2002–2010)
11 engines · +21 to +55 hp
Audi A8 D3: 11 engines — 7 gas and 4 diesel. Gains run from +21 to +55 hp, with up to +111 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 199 EUR.
All Audi A8 D3 engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and gasoline engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Diesel · 4 engines | ||||
| 4.2 TDI326 hp / 650 Nm | +55 hp+111 Nm |
GTL — 279 EUR · 372 hp GT — 459 EUR · 381 hp |
Select → | |
| 4.0 TDI275 hp / 650 Nm | +47 hp+111 Nm |
GTL — 249 EUR · 314 hp GT — 399 EUR · 322 hp |
Select → | |
| 3.0 TDI211 hp / 500 Nm | +44 hp+105 Nm |
GTL — 249 EUR · 249 hp GT — 399 EUR · 255 hp |
Select → | |
| 3.0 TDI232 hp / 450 Nm | +39 hp+77 Nm |
GTL — 249 EUR · 264 hp GT — 399 EUR · 271 hp |
Select → | |
| Gasoline · 7 engines | ||||
| 6.0 FSI450 hp / 580 Nm | +36 hp+46 Nm |
GA — 219 EUR · 486 hp GA+ — 219 EUR · 486 hp |
Select → | |
| 4.2 FSI350 hp / 440 Nm | +28 hp+35 Nm |
GA — 219 EUR · 378 hp GA+ — 219 EUR · 378 hp |
Select → | |
| 4.2 FSI335 hp / 430 Nm | +27 hp+34 Nm |
GA — 219 EUR · 362 hp GA+ — 219 EUR · 362 hp |
Select → | |
| 3.0 FSI220 hp / 300 Nm | +26 hp+36 Nm |
GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp |
Select → | |
| 2.8 FSI210 hp / 280 Nm | +25 hp+34 Nm |
GA — 199 EUR · 235 hp GA+ — 199 EUR · 235 hp |
Select → | |
| 3.7 FSI280 hp / 360 Nm | +22 hp+29 Nm |
GA — 199 EUR · 302 hp GA+ — 199 EUR · 302 hp |
Select → | |
| 3.2 FSI260 hp / 330 Nm | +21 hp+26 Nm |
GA — 199 EUR · 281 hp GA+ — 199 EUR · 281 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 A8 D3 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
- +55 hpbest in this generation
4.2 TDI 326 hp → 381 hp. The other engines gain +21 hp and up; check the table for each one.
- +111 Nmfor diesels
Diesels gain mostly torque: +77 to +111 Nm for towing and hauling.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 7 naturally aspirated engines: the GAN GA / GAN GA+ tuners; check the table for each engine’s numbers.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
Audi A8 D3 tuning FAQ
Which tuner do I need for my Audi A8 D3?
Turbo engines take the GAN GT or GAN GTL; naturally aspirated engines take the GAN GA or GAN GA+. 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.