Mercedes Benz E63 AMG 4.0L BiTurbo Remapping and Tuning

Unlock the full potential of your Mercedes Benz E63 AMG 4.0L BiTurbo with Onyx Performance, based in Slough, Berkshire, just outside West London. Whether you’re looking to increase power and torque with Stage 1 tuning or push performance further with Stage 2 modifications, we offer expert ECU remapping, servicing, and performance upgrades tailored specifically for the 4.0L BiTurbo AMG engine.

Our Stage 1 and Stage 2 tuning packages have been extensively developed in-house on our 4WD Dyno, ensuring maximum power, reliability, and drivability.

Mercedes Benz E63 AMG 4.0L BiTurbo Stage 1 & Stage 2 – Power Gains

Stage 1 – Power Gains:

Stock Power (E63 Standard Model): 570HP / 750Nm
Stock Power (E63S Model): 612HP / 800Nm
Stage 1 Remap: 700HP / 950+Nm
Hardware Required: None

Our Stage 1 remap is designed for vehicles with stock hardware, delivering increased power, torque, and sharper throttle response, all while maintaining factory reliability. The refined ECU calibration enhances acceleration, turbo response, and overall drivability.

Stage 1 tuning provides a significant performance increase while keeping daily usability and long-term durability in mind.

Stage 2 – Power Gains:

Stock Power (E63 Standard Model): 570HP / 750Nm
Stock Power (E63S Model): 612HP / 800Nm
Stage 2 Remap: 750+HP / 1000Nm*
Hardware Required:
- Decat Downpipe or High-Flow Sports Catalyst
- Cat-Back Exhaust System (Optional but recommended for maximum performance and sound)
- Upgraded Air Filter

Stage 2 tuning builds on Stage 1 with key hardware modifications to improve airflow and exhaust efficiency, unlocking even greater power and torque.

Stage 2 tuning is ideal for AMG owners seeking increased responsiveness, power, and an exhilarating driving experience.

Onyx Performance – Mercedes Benz E63 AMG 4.0L BiTurbo Remap Service Includes:

✔ Rolling Road (Dyno) Testing for precise power measurement
✔ Data Logging and Diagnostics to ensure optimal tuning
✔ Before and After Performance Printouts
✔ Engine Smoke Test to check for Boost/Vacuum Leaks
✔ Catalyst Efficiency Fault Code Delete (Optional)
✔ Speed Limiter Removal (Optional)
✔ Sport Mode Overrun Crackles (Optional)
✔ Cold Start Delete (Optional)
✔ Comprehensive Diagnostic Check

All remaps are developed in-house to ensure maximum performance while maintaining reliability.

Exhaust Upgrades for Mercedes Benz E63 AMG 4.0L BiTurbo

Upgrading your E63 AMG exhaust system enhances performance, efficiency, and sound. We offer:

? Decat Downpipes – Increases turbo efficiency and exhaust flow for maximum power
? High-Flow Sports Catalysts – Reduces backpressure while remaining emissions compliant
? Cat-Back Exhaust Systems – Enhances exhaust note and performance
? GPF Delete – Recommended for maximum sound and performance

Pairing an exhaust upgrade with Stage 2 tuning ensures optimal power gains and an aggressive AMG exhaust tone.

Servicing and Maintenance for Mercedes Benz E63 AMG 4.0L BiTurbo

Maintaining your Mercedes E63 AMG 4.0L BiTurbo is essential for long-term reliability and peak performance. At Onyx Performance, we offer:

? Routine Servicing: Oil changes, filter replacements, and general maintenance
? Brake Repairs and Upgrades: OEM replacements and high-performance braking systems
? Suspension Maintenance & Upgrades: Ensuring optimal handling and ride quality
? Diagnostics and Fault Repairs: Advanced system checks to prevent potential issues

With our expertise in Mercedes AMG tuning, we ensure your 4.0L BiTurbo AMG model runs at its best, mile after mile.

Styling, Performance Upgrades & Vehicle Security

Enhance your Mercedes E63 AMG 4.0L BiTurbo with custom styling, performance upgrades, and vehicle security solutions:

Styling and Performance Upgrades:

? Aero Kits & Carbon Fibre Components – Enhanced styling and aerodynamics
? Lowering Springs & Coilovers – Improved handling and aggressive stance
? Big Brake Kits – High-performance braking systems for superior stopping power

Vehicle Security Solutions:

Protect your Mercedes AMG with advanced security solutions, ensuring peace of mind:

? Autowatch Ghost Immobilisers – Prevents key cloning and unauthorised starts
? MetaTrak Trackers – Live GPS tracking with mobile app integration
? Scorpion Track Systems – Motion alerts and driver recognition for enhanced security
? Fleet Trackers – Ideal for monitoring and securing multiple vehicles

All security systems are professionally installed to seamlessly integrate and maximise protection.

Opening Hours and Contact Information

? Visit Us:

Location: Slough, Berkshire
Opening Hours:
Monday–Friday: 10 AM–6 PM
Saturday: 10 AM–3 PM
Closed Sundays
? Phone: 01753 439321
? Email: info@onyxperformance.co.uk

About Onyx Performance

At Onyx Performance, we specialise in high-quality tuning, remapping, servicing, upgrades, and security solutions for Mercedes AMG models, ensuring maximum performance, reliability, and efficiency.

Our dedicated team is committed to providing the best tuning solutions in the UK for high-performance Mercedes AMG vehicles.

Flexible Finance Options

? Spread the cost of your Mercedes AMG tuning, performance upgrades, and security solutions with our flexible finance plans, available over 4 monthly payments.

✅ All prices include VAT
✅ No hidden fees
✅ Simple application process

Contact Onyx Performance

Transform your Mercedes E63 AMG 4.0L BiTurbo today with Onyx Performance. Whether you’re looking for Stage 1 remapping, performance exhaust systems, styling enhancements, or vehicle security solutions, our expert team is here to help.

? Call us now on 01753 439321 to book your tuning service or discuss security options!

Explore all tuning packages in our shop – Klarna, PayPal & Clearpay available at checkout!

Mercedes Benz E63 (S) AMG 4.0 BiTurbo – Remap/Tuning Packages