BHP+20 hp (6%)
Standard
335 hp
Tuned
355 hp
Torque+20 Nm (5%)
Standard
430 Nm
Tuned
450 Nm
Suitability
Limited (3.5/10)Gains Profile
Limited headroomHeadroom
LowAudi A8 4.2i 335hp ECU Remapping
Considering an ECU remap for your Audi A8 4.2i 335hp? A Stage 1 remap can take this D3 - 2003 - 2010 petrol engine from 335 BHP to 355 BHP and from 430 Nm to 450 Nm of torque (naturally aspirated). This engine scores 3.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Audi A8 can achieve.
How this engine compares
- 32ndof 35 Audi A8 engines by power gain
- 14%of the 9,842 engines we hold gain data for see a smaller power increase
- 8%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Audi A8 4.2i 335hp is a 4.2L naturally aspirated petrol engine producing 335 BHP and 430 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 355 BHP and 450 Nm — a gain of around 20 BHP (6%) and 20 Nm (5%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
From a technical perspective, the transmission is manual and dsg/s tronic automatics are common depending on model/engine. some dsg/dual-clutch gearboxes have torque management; calibration may be torque-limited. at this torque level, transmission and driveline servicing history becomes especially important..
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
!High tuned torque: check transmission torque capacity and service history.