Audi RSQ8 4.0 V8 Bi-Turbo Performance Remapping – Onyx Performance
The Audi RSQ8 4.0 V8 Bi-Turbo is a high-performance luxury SUV that delivers an impressive blend of power, refinement, and cutting-edge technology. At Onyx Performance, we specialise in custom ECU and gearbox tuning, optimised to enhance power, torque, and overall driving dynamics. Our Stage 1 and Stage 2 remaps are developed on our state-of-the-art 4WD rolling road dyno, ensuring reliable and effective performance upgrades tailored to your RSQ8.
Audi RSQ8 4.0 V8 Bi-Turbo – Stage 1 & Stage 2 Remapping
Stage 1 – Optimised ECU Software for Stock Hardware
- Stock Power: 600HP / 800Nm
- Stage 1 Power Gains: 720HP / 1000Nm
- Hardware Required: None
A Stage 1 remap enhances the engine control unit (ECU) calibration, optimising boost pressure, ignition timing, and fuel delivery to significantly increase power, throttle response, and overall drivability while maintaining factory reliability.
Stage 2 – Performance ECU Remap with Supporting Modifications
- Stock Power: 600HP / 800Nm
- Stage 2 Power Gains: 750HP / 1020-1050Nm
- Hardware Required:
✅ Decat Downpipe or High-Flow Sports Catalyst (Improves turbo efficiency and enhances exhaust flow)
✅ Upgraded Air Filter (Optimises airflow for increased combustion efficiency)
✅ Bigger Intercooler (Reduces intake temperatures for consistent power delivery)
✅ Cat-Back Exhaust System (Optional but recommended) (Enhances sound and turbo response)
✅ Onyx Performance Stage 2 Gearbox Software (Optimises shift speeds, torque delivery & launch control settings)
A Stage 2 remap further refines turbo performance, fuel injection, and ignition timing, delivering higher power output, improved acceleration, and sharper throttle response for a truly exhilarating driving experience.
Performance figures may vary based on modifications and fuel quality.
Onyx Performance – Audi RSQ8 4.0 V8 Bi-Turbo Remap Service Includes:
✔ Rolling Road (Dyno) Testing – Measuring power before and after tuning
✔ Live Data Logging & Diagnostics – Ensuring safe and optimal ECU calibration
✔ Before & After Performance Printouts – Providing clear power gains and improvements
✔ Engine Smoke Test – Checking for boost or vacuum leaks
✔ Catalyst Efficiency Fault Code Delete (Optional) – Prevents warning lights after exhaust modifications
✔ Sport Mode Overrun Crackles (Optional) – Enhancing exhaust sound in dynamic drive modes
✔ Speed Limiter Removal – Unlocking full top-speed potential
✔ Custom ECU Calibration – Tailored tuning to maximise performance and reliability
Exhaust Upgrades for Audi RSQ8 4.0 V8 Bi-Turbo
Enhance both performance and exhaust tone with our premium exhaust upgrade options:
? Decat Downpipes – Maximises turbo efficiency and power output
? High-Flow Sports Catalysts – Reduces restriction while remaining emissions compliant
? Cat-Back Exhaust Systems – Improves sound quality and enhances exhaust flow
? GPF (Gasoline Particulate Filter) Delete – Recommended for maximum sound and performance
Pairing Stage 2 tuning with an upgraded exhaust system significantly improves power delivery and creates a more aggressive exhaust note.
Servicing & Maintenance for Audi RSQ8 4.0 V8 Bi-Turbo
Routine maintenance is crucial to ensure peak performance and reliability. At Onyx Performance, we provide:
? Routine Servicing – Oil changes, filter replacements, and essential system checks
? Brake Repairs & Upgrades – OEM replacements and high-performance brake systems
? Suspension Inspections & Upgrades – Enhancing handling and ride quality
? Advanced Diagnostics & Fault Repairs – Identifying and resolving engine and drivetrain issues
We also update your digital service history, ensuring full records for your vehicle.
Vehicle Security & Immobilisers for Audi RSQ8 4.0 V8 Bi-Turbo
Protect your high-performance Audi with our advanced security solutions:
? Autowatch Ghost Immobiliser – Prevents key cloning and unauthorised starts
? MetaTrak Trackers – Live GPS tracking with mobile app monitoring
? Scorpion Track Systems – Motion alerts and driver recognition for added security
? Fleet Tracking Solutions – Ideal for managing multiple high-value vehicles
All security systems are professionally installed, ensuring seamless integration and maximum protection.
Why Choose Onyx Performance for Audi RSQ8 Tuning?
✔ Specialists in Audi 4.0 V8 Bi-Turbo Tuning – Decades of experience with high-performance Audi models
✔ Dyno-Tested ECU & Gearbox Software – Developed in-house on our 4WD rolling road dyno
✔ Bespoke ECU & Gearbox Remapping – Optimised throttle response, turbo control, and shift mapping
✔ Full Vehicle Health Check Before Tuning – Ensuring long-term engine reliability and safety
✔ Flexible Finance Options Available – Making performance tuning accessible to all
Unlock the Full Potential of Your Audi RSQ8 4.0 V8 Bi-Turbo with Onyx Performance
Whether you’re looking for a Stage 1 remap for enhanced drivability or Stage 2 tuning for ultimate power, Onyx Performance delivers the highest-quality tuning solutions for your Audi RSQ8.
? Located in Slough, Berkshire – Serving Audi RSQ8 owners across the UK
? Contact us today to book your remap and experience the ultimate performance upgrade!
? Transform your Audi RSQ8 with Onyx Performance! ?