Audi A6 C6 - 2004 - 2008 4.2 FSI 335hp
Real standard and upgraded performance figures for the 4.2 FSI 335hp engine in the Audi A6 C6 - 2004 - 2008.
The Audi A6 C6 - 2004 - 2008 4.2 FSI 335hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 335 | 420 |
| Stage 1 | 355 | 445 |
| Stage 2 | 365 | 457 |
- Make
- Audi
- Model
- A6
- Generation
- C6 - 2004 - 2008
- Engine
- 4.2 FSI 335hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Audi A6 C6 - 2004 - 2008 4.2 FSI 335hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 4.2 FSI 335hp make after tuning?
Standard output is 335 HP / 420 Nm; Stage 1 on this engine typically reaches 355 HP / 445 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Audi A6 C6 - 2004 - 2008 4.2 FSI 335hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 4.2 FSI 335hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.