BHP+25 hp (6%)
Standard
450 hp
Tuned
475 hp
Torque+30 Nm (7%)
Standard
430 Nm
Tuned
460 Nm
Suitability
Limited (3.5/10)Gains Profile
Limited headroomHeadroom
LowAudi RS4 4.2 FSI 450hp ECU Remapping
Considering an ECU remap for your Audi RS4 4.2 FSI 450hp? A Stage 1 remap can take this B8 - 2012 - 2017 petrol engine from 450 BHP to 475 BHP and from 430 Nm to 460 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 RS4 can achieve.
How this engine compares
- 4thof 5 Audi RS4 engines by power gain
- 28%of the 9,842 engines we hold gain data for see a smaller power increase
- 17%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Audi RS4 4.2 FSI 450hp is a 4.2L naturally aspirated petrol engine producing 450 BHP and 430 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 475 BHP and 460 Nm — a gain of around 25 BHP (6%) and 30 Nm (7%).
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 ECU is typically a Bosch MED17 (likely), and 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.