Mercedes-AMG G63 W463 Remapping and Tuning
Unlock the full potential of your Mercedes-AMG G63 W463 with professional ECU remapping and performance tuning from Onyx Performance in Slough.
The 5.5 V8 BiTurbo M157 petrol engine produces 571HP and 760Nm as standard. Our Stage 1 remap is designed to improve power, torque and throttle response, delivering stronger acceleration and a more responsive driving experience.
Whether you’re looking for a Stage 1 remap, Stage 2 tuning, gearbox tuning or supporting performance upgrades, we can help you choose the right solution for your Mercedes-AMG G63.
MERCEDES-AMG G63 STAGE 1 REMAP
Our Stage 1 remap is designed to improve the performance of your Mercedes-AMG G63 W463 while retaining everyday drivability.
The standard output of 571HP and 760Nm can be increased to an estimated 630HP and 880Nm with our Stage 1 remap.
A Stage 1 remap can offer several benefits:
- Increased horsepower
- Increased torque
- Improved throttle response
- Stronger acceleration
- Improved in-gear performance
- Smoother power delivery
Before tuning, we recommend checking the vehicle’s mechanical condition, ignition system and spark plugs to help ensure the vehicle is suitable for remapping.
MERCEDES-AMG G63 STAGE 2 TUNING
Looking for more performance from your Mercedes-AMG G63? Our Stage 2 tuning options are designed for vehicles with suitable supporting modifications.
With the appropriate hardware and calibration, estimated Stage 2 performance can reach up to 680HP and 930Nm.
Supporting modifications may include:
- Performance exhaust upgrades
- Sports catalytic converter or suitable downpipe
- Performance intake system
- Supporting hardware for the selected setup
Stage 2 performance depends on the supporting hardware, mechanical condition and final calibration.
Call for a Stage 2 quote. Final performance figures depend on supporting modifications, vehicle condition and setup.
MERCEDES-AMG G63 GEARBOX TUNING
We can also help with gearbox tuning for compatible Mercedes-AMG G63 models.
Gearbox tuning can help improve transmission response and complement the increased performance delivered by an ECU remap.
Potential benefits include:
- Improved gearshift response
- Faster gear changes where supported
- Optimised shift behaviour
- Improved transmission response under acceleration
- Better coordination between engine and gearbox
Gearbox tuning availability and compatibility must be confirmed against your vehicle’s specification.
BEFORE TUNING YOUR MERCEDES-AMG G63
Before carrying out any ECU remapping, we recommend ensuring your Mercedes-AMG is in good mechanical condition.
Our checks can include:
- Full diagnostic scan
- Engine health checks
- Boost leak inspection
- Intake system checks
- Smoke testing where required
- Spark plug and ignition system checks
- Misfire investigation
- Review of engine and transmission fault codes
Carrying out these checks helps identify existing issues before tuning and ensures the vehicle is suitable for the selected performance upgrade.
SERVICING AND MAINTENANCE FOR YOUR MERCEDES-AMG G63
Keeping your Mercedes-AMG properly maintained is important for reliability and performance.
Onyx Performance can help with:
- Engine oil and filter changes
- Interim and major servicing
- Spark plug replacement
- Brake inspections and upgrades
- Vehicle diagnostics
- Cooling system checks
- Suspension inspections
- General engine maintenance and repairs
Regular servicing helps maintain performance and supports the long-term condition of your vehicle.
MERCEDES-AMG G63 EXHAUST UPGRADES
Improve the sound and character of your Mercedes-AMG with suitable performance exhaust upgrades.
Available options may include:
- Performance exhaust systems
- Sports catalytic converters
- Downpipes
- Exhaust sound enhancements
- Supporting exhaust modifications
The right exhaust setup depends on your vehicle’s specification, intended use and supporting modifications.
MERCEDES-AMG G63 PERFORMANCE UPGRADES
Alongside ECU remapping, we can help you explore suitable performance upgrades for your Mercedes-AMG G63.
Options may include:
- Performance intake systems
- Intake upgrades
- Intercooler upgrades where applicable
- Performance exhaust systems
- Suitable downpipes
- Supporting performance hardware
- Gearbox tuning where compatible
- Other suitable performance modifications
Our aim is to help you choose upgrades that complement your vehicle and its intended performance setup.
MERCEDES-AMG G63 STYLING AND BODY UPGRADES
Give your Mercedes-AMG a more distinctive appearance with suitable styling and body enhancements.
We can help with:
- Exterior styling upgrades
- Body styling enhancements
- Wheel upgrades
- Brake upgrades
- Suspension upgrades
- Appearance modifications
Whether you want a subtle change or a more aggressive look, we can help you explore suitable options for your G63.
MERCEDES-AMG G63 VEHICLE SECURITY
Protect your Mercedes-AMG with additional vehicle security solutions from Onyx Performance.
We can help with:
- Aftermarket immobilisers
- Additional vehicle security systems
- Vehicle protection solutions
- Other suitable security upgrades
Contact our team to discuss the available security options for your vehicle.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance, we provide performance tuning and vehicle upgrade services designed around your vehicle and requirements.
We can help with:
- Professional ECU remapping
- Stage 1 and Stage 2 tuning
- Gearbox tuning where compatible
- Vehicle servicing and diagnostics
- Performance exhaust upgrades
- Intake and other performance upgrades
- Styling and body enhancements
- Brake and suspension upgrades
- Vehicle security solutions
We focus on your vehicle’s condition, specification and intended use when discussing the right tuning and upgrade options.
MERCEDES-AMG G63 REMAPPING IN SLOUGH
Onyx Performance is based in Slough, Berkshire, providing ECU remapping, performance tuning and vehicle upgrade services for Mercedes-AMG owners.
We welcome customers from:
- Slough
- Windsor
- Langley
- Maidenhead
- Heathrow
- Uxbridge
- West London
Get in touch to discuss your Mercedes-AMG G63 remapping and performance requirements.
FREQUENTLY ASKED QUESTIONS
How much power can a Stage 1 remap add to my Mercedes-AMG G63?
The standard output is 571HP and 760Nm. A Stage 1 remap can increase this to an estimated 630HP and 880Nm, depending on vehicle condition and setup.
Can my Mercedes-AMG G63 have Stage 2 tuning?
Yes, Stage 2 tuning may be available with suitable supporting modifications. Estimated performance can reach up to 680HP and 930Nm. Call for a Stage 2 quote to discuss your requirements.
Do I need modifications for a Stage 1 remap?
A Stage 1 remap is generally designed for a vehicle without additional performance hardware. We recommend checking the vehicle’s mechanical condition and confirming suitability before tuning.
Can you tune the gearbox on my Mercedes-AMG G63?
Gearbox tuning may be available for compatible models. We will need to confirm your transmission specification before advising on compatibility.
Do you carry out diagnostic checks before remapping?
Yes. We recommend a diagnostic scan and mechanical checks before tuning to identify existing faults and confirm that the vehicle is suitable.
Can I upgrade the exhaust on my Mercedes-AMG G63?
We can discuss suitable performance exhaust systems and supporting exhaust modifications based on your vehicle’s specification and requirements.
Can I have performance and styling upgrades fitted?
Yes. We can help you explore suitable performance parts, exhaust upgrades, wheels, brakes, suspension and styling enhancements.
Is Stage 3 tuning available for the Mercedes-AMG G63?
Stage 3 tuning is intended for more extensively modified vehicles. Requirements and achievable results depend on the supporting hardware and vehicle setup. Contact us to discuss your requirements.
Will my Mercedes-AMG need an ECU or TCU unlock?
Some vehicles may require an ECU or TCU unlock before tuning can be carried out. Additional costs or turnaround time may apply. The exact ECU and software requirements will be confirmed on the vehicle.
BOOK YOUR MERCEDES-AMG G63 REMAP
Ready to upgrade your Mercedes-AMG G63?
Book your Mercedes-AMG G63 W463 Stage 1 remap with Onyx Performance in Slough, or contact us to discuss Stage 2 tuning and supporting upgrades.
We can also help with gearbox tuning, servicing, diagnostics, exhausts, intakes, intercoolers, performance parts, styling, brakes, suspension and vehicle security.
Call: 01753 439321
Monday–Friday: 10AM–6PM
Saturday: 10AM–3PM
Onyx Performance – Mercedes-AMG G63 W463 Remapping and Performance Tuning in Slough, Berkshire.
Contact Onyx Performance
Transform your Mercedes-AMG G63 today with Onyx Performance. Whether you’re looking for Stage 1 or Stage 2 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 Stage 2 and security options!
🚗 Unleash the full potential of your Mercedes-AMG with Onyx Performance! 🚗
