Audi RS4 B8 Remapping and Tuning
Upgrade your Audi RS4 B8 4.2 FSI V8 450HP with professional Stage 1 and Stage 2 tuning from Onyx Performance in Slough, Berkshire.
Produced between 2012 and 2015, the Audi RS4 B8 features a naturally aspirated 4.2-litre FSI V8 petrol engine. Professional ECU calibration can optimise engine response and refine power delivery, helping you get more from this high-revving performance engine while maintaining everyday drivability when the vehicle is in good mechanical condition.
Audi RS4 B8 Performance Figures
- Engine: 4.2 FSI V8
- Fuel Type: Petrol
- Standard Power: 450HP
- Standard Torque: 430Nm
- Stage 1 Power: 475HP
- Stage 1 Torque: 450Nm
- Stage 2 Power: 495HP
- Stage 2 Torque: 465Nm
- ECU: Bosch MED9.1 / MED17.1.1
Stage 1 Remap – Audi RS4 B8
Our Stage 1 ECU remap is designed to optimise engine calibration and improve responsiveness while retaining standard engine hardware, where the vehicle is suitable for tuning.
Performance figures:
- Standard power: 450HP
- Tuned power: 475HP
- Standard torque: 430Nm
- Tuned torque: 450Nm
A Stage 1 remap can refine throttle response and power delivery across the rev range. Actual results depend on the vehicle’s mechanical condition, fuel quality and calibration.
Stage 2 Remap – Audi RS4 B8
For drivers seeking further optimisation, Stage 2 tuning offers an alternative calibration that may require suitable supporting modifications, depending on the setup.
Target performance figures:
- Tuned power: 495HP
- Tuned torque: 465Nm
Contact Onyx Performance for a tailored Stage 2 quote and confirmation of any supporting hardware required for your RS4.
Gearbox Tuning
Gearbox tuning can complement engine remapping by refining shift response and transmission behaviour where supported by the fitted gearbox and software.
Available options:
- Stage 1 Gearbox Remap – Contact for Price
- Stage 2 Gearbox Remap – Contact for Price
- Stage 3 Gearbox Remap – Contact for Price
Contact us to confirm gearbox tuning compatibility for your Audi RS4 B8.
BEFORE TUNING
Before tuning, we recommend checking the vehicle’s service history, engine oil, spark plugs, ignition components, cooling system, intake system and diagnostic fault codes. The engine and transmission should be in good mechanical condition before any performance calibration is installed.
SERVICING AND MAINTENANCE
Regular maintenance is essential for the performance and reliability of your RS4. Follow an appropriate servicing schedule, use suitable fluids and quality replacement parts, and address any mechanical issues before tuning. Additional inspections may be advisable depending on mileage and driving style.
EXHAUST UPGRADES
Suitable exhaust upgrades may complement a performance setup, depending on the chosen calibration and vehicle specification. Any modifications should comply with applicable noise and emissions regulations. Contact us to discuss compatibility before purchasing parts.
PERFORMANCE UPGRADES
Supporting modifications may include intake or exhaust improvements and other suitable hardware, depending on your goals. As the RS4 B8 uses a naturally aspirated engine, expected gains from software and hardware differ from those of a turbocharged vehicle. We can discuss realistic options for your particular setup.
STYLING AND BODY UPGRADES
Personalise your Audi RS4 with styling and body upgrades that suit its performance character. Ensure any modifications are professionally fitted and suitable for road use.
VEHICLE SECURITY
Protect your performance vehicle with sensible security measures. Keep keys secure, consider suitable anti-theft protection and ensure any security upgrades are compatible with the vehicle’s systems.
WHY CHOOSE ONYX PERFORMANCE?
Onyx Performance provides professional ECU remapping and performance tuning in Slough, Berkshire. We focus on vehicle-specific calibration, clear performance targets and advice on suitable supporting modifications.
REMAPPING IN SLOUGH
Looking for an Audi RS4 B8 remap in Slough or the surrounding Berkshire area? Contact Onyx Performance to discuss Stage 1 tuning, Stage 2 options and gearbox remapping for your vehicle.
Frequently Asked Questions
How much power can an Audi RS4 B8 make with a Stage 1 remap?
The supplied figures indicate an increase from 450HP and 430Nm to approximately 475HP and 450Nm. Actual results may vary with vehicle condition, fuel quality and calibration.
How much power can an Audi RS4 B8 make with Stage 2 tuning?
The supplied Stage 2 figures are 495HP and 465Nm. Contact us to discuss the calibration and supporting modifications appropriate for your vehicle.
Are hardware upgrades required for Stage 2?
Requirements depend on the selected calibration and vehicle specification. Contact us to confirm which modifications, if any, are required.
Can I have the gearbox remapped as well?
Gearbox tuning may be available depending on the fitted transmission and software version. Contact Onyx Performance for compatibility and pricing.
Can I book a dyno session?
Dyno sessions are available for £120.00. Contact us to arrange a session and confirm suitable testing for your vehicle.
Is Stage 3 tuning available?
More extensive performance packages depend on the vehicle, available hardware and desired performance target. Contact us to discuss a bespoke setup.
Does the ECU need unlocking?
Requirements depend on the installed ECU and software version. We can check compatibility and advise whether an unlock or additional procedure is necessary.
BOOK YOUR REMAP
Ready to optimise your Audi RS4 B8? Contact Onyx Performance in Slough, Berkshire to discuss your requirements, confirm vehicle compatibility and arrange your remapping appointment.
Onyx Performance – Professional ECU Remapping and Performance Tuning
📞 Call us now on 01753 439321 to book your tuning service or discuss Stage 2 and security options!
