Audi A8 D3 - 2003 - 2010 4.2 FSI 350hp

Real standard and upgraded performance figures for the 4.2 FSI 350hp engine in the Audi A8 D3 - 2003 - 2010.

Standard vs. upgraded performance for the Audi A8 D3 - 2003 - 2010 4.2 FSI 350hp, based on real files we've processed for this exact engine.

Horsepower (HP)Torque (Nm)
Standard350440
Stage 1375465
Stage 2387477
Make
Audi
Model
A8
Generation
D3 - 2003 - 2010
Engine
4.2 FSI 350hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Audi A8 D3 - 2003 - 2010 4.2 FSI 350hp?

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 350hp make after tuning?

Standard output is 350 HP / 440 Nm; Stage 1 on this engine typically reaches 375 HP / 465 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Audi A8 D3 - 2003 - 2010 4.2 FSI 350hp 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 350hp 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.