Audi A8 D3 - 2003 - 2010 4.2i 335hp
Real standard and upgraded performance figures for the 4.2i 335hp engine in the Audi A8 D3 - 2003 - 2010.
These are real standard and Stage 1 (and where available, Stage 2) figures for the Audi A8 D3 - 2003 - 2010 4.2i 335hp — not a generic estimate for the model range.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 335 | 430 |
| Stage 1 | 355 | 450 |
| Stage 2 | 365 | 460 |
- Make
- Audi
- Model
- A8
- Generation
- D3 - 2003 - 2010
- Engine
- 4.2i 335hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Audi A8 D3 - 2003 - 2010 4.2i 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 4.2i 335hp make after tuning?
Standard output is 335 HP / 430 Nm; Stage 1 on this engine typically reaches 355 HP / 450 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Audi A8 D3 - 2003 - 2010 4.2i 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 4.2i 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.