Toyota GR Supra 3.0 A91 Remapping and Tuning
Upgrade your Toyota GR Supra 3.0 387HP with professional Stage 1 and Stage 2 tuning from Onyx Performance in Slough, Berkshire.
The Toyota GR Supra 3.0 uses the 3.0 BMW B58 petrol engine and responds very well to tuning. Whether you want more performance from a standard vehicle or are planning further upgrades, we can help with the complete setup.
We also offer gearbox tuning where compatible, servicing, diagnostics, exhausts, intakes, intercoolers, suspension, brakes, styling and vehicle security.
Suitable for Toyota GR Supra 3.0 A91 387HP models from 2020 onwards.
TOYOTA GR SUPRA 3.0 STAGE 1 REMAP
Standard: 387HP / 500Nm
Stage 1: Up to 460HP / 640Nm
Stage 1 tuning is ideal for standard or lightly modified Toyota GR Supra 3.0 models. It is designed to increase power and torque while retaining smooth, reliable performance for everyday driving. Major engine hardware upgrades are normally not required for a Stage 1 remap.
A Stage 1 remap can improve:
- Power and torque
- Throttle response
- Acceleration
- Mid-range performance
- Overtaking performance
- Overall engine response
The result is a stronger, more responsive GR Supra while maintaining the flexibility needed for everyday road use.
As the GR Supra 3.0 is a petrol vehicle, we recommend checking spark plugs and ignition components before tuning. Any existing misfires or ignition issues should be diagnosed before a remap is carried out.
TOYOTA GR SUPRA 3.0 STAGE 2 REMAP
Standard: 387HP / 500Nm
Stage 2: Up to 500HP / 690Nm
Stage 2 tuning is designed for Toyota GR Supra 3.0 models with suitable supporting performance upgrades. The correct hardware setup is important to achieve the intended performance safely and consistently.
Depending on your vehicle and modifications, supporting upgrades may include:
- Performance downpipe or suitable sports catalyst
- Upgraded air intake
- Larger intercooler
- Performance exhaust system
- Supporting engine upgrades where required
- Gearbox tuning where suitable
Already have performance parts fitted? Speak to our team so we can check your setup and advise on the most suitable Stage 2 package.
Call 01753 439321 to discuss a Stage 2 package.
All quoted performance figures are estimates and can vary depending on vehicle condition, hardware, fuel quality and supporting modifications.
GEARBOX TUNING
We can advise on gearbox tuning options for compatible Toyota GR Supra 3.0 models.
Gearbox tuning can help improve:
- Gear change response
- Shift speed
- Torque handling
- Gearbox response
- Power delivery
- How the gearbox works with increased engine power
The available options depend on the gearbox and software fitted to your vehicle. Contact us to check compatibility before booking.
BEFORE TUNING YOUR TOYOTA GR SUPRA
Before carrying out a remap, we recommend checking that your Toyota GR Supra is in good mechanical condition.
Our checks can include:
- Full diagnostic scan
- Checking for stored engine and gearbox faults
- Smoke testing where required
- Boost leak checks
- Intake leak checks
- Misfire checks
- Spark plug and ignition checks
- Basic engine health checks
If we identify any existing faults, we will discuss them with you before proceeding. Any additional repairs or work will be quoted separately and only carried out with your approval.
SERVICING AND MAINTENANCE
Keeping your Toyota GR Supra properly maintained is important, particularly when increasing engine performance.
Onyx Performance can help with:
- Engine oil and filter changes
- Interim and major servicing
- Spark plug replacement
- Brake inspections and repairs
- Vehicle diagnostics
- Cooling system checks
- Suspension checks and repairs
- Engine repairs
- General vehicle maintenance
A tuned vehicle should be maintained correctly to help support consistent performance and long-term reliability.
PERFORMANCE EXHAUST UPGRADES
Looking for a better exhaust sound and improved airflow for your Toyota GR Supra 3.0?
We can supply and fit suitable performance exhaust upgrades, depending on your requirements and vehicle setup.
Available options may include:
- Cat-back exhaust systems
- Performance downpipes and suitable sports catalysts
- Resonator deletes where applicable
- Exhaust modifications
- Custom exhaust options
Whether you want a more subtle exhaust note or a louder, more aggressive sound, we can help you choose a suitable setup.
PERFORMANCE UPGRADES
Alongside ECU remapping, we can help upgrade other areas of your Toyota GR Supra to support your performance goals.
Available upgrades may include:
- Performance air intake systems
- Turbo inlet upgrades where suitable
- Upgraded intercoolers
- Performance downpipes and sports catalysts
- Performance exhaust systems
- Upgraded spark plugs
- Turbocharger upgrades
- Fuel system upgrades
- Lowering springs
- Coilover suspension
- Brake upgrades
We can advise on suitable supporting modifications based on your current setup and the performance you want to achieve.
STYLING AND BODY UPGRADES
Give your Toyota GR Supra a more individual appearance with styling upgrades from Onyx Performance.
Options may include:
- Front splitters
- Side skirts
- Rear diffusers
- Spoilers
- Bodykits
- Carbon styling upgrades
- Black styling enhancements
- Lowering springs
- Wheel spacers
- Alloy wheels
Whether you prefer a subtle factory-inspired appearance or a more aggressive look, we can help you choose the right styling package.
VEHICLE SECURITY
Protect your Toyota GR Supra with additional vehicle security solutions.
We can advise on security options including:
- Ghost immobilisers
- Vehicle trackers
- Additional immobilisers
- Other suitable vehicle security systems
The Toyota GR Supra is a desirable performance vehicle, so additional security can provide valuable protection. Contact us to discuss the options available for your vehicle.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance, we provide a range of tuning, maintenance and vehicle upgrade services under one roof.
Our services include:
- ECU remapping
- Gearbox tuning where compatible
- Vehicle diagnostics
- Servicing and maintenance
- Mechanical repairs
- Performance exhaust systems
- Air intake upgrades
- Intercooler upgrades
- Performance modifications
- Suspension upgrades
- Brake upgrades
- Styling and body enhancements
- Vehicle security solutions
- Alloy wheel refurbishment
From improving performance to maintaining and protecting your vehicle, our team can help with your Toyota GR Supra.
TOYOTA GR SUPRA REMAPPING IN SLOUGH
Onyx Performance is based in Slough, Berkshire, making us conveniently located for customers travelling from Windsor, Langley, Maidenhead, Heathrow, Uxbridge and across West London.
If you are looking for a Toyota GR Supra 3.0 A91 Stage 1 remap, Stage 2 tuning, gearbox tuning or performance upgrades, contact our team to discuss your requirements.
We can advise on the available tuning options and supporting modifications for your vehicle.
FREQUENTLY ASKED QUESTIONS
How much power can a Toyota GR Supra 3.0 make with a Stage 1 remap?
The Toyota GR Supra 3.0 A91 has a standard output of 387HP and 500Nm. Our quoted Stage 1 figures are up to 460HP and 640Nm, depending on vehicle condition and supporting factors.
Does my Toyota GR Supra need modifications for Stage 1?
Major hardware upgrades are normally not required for Stage 1 tuning. However, the vehicle should be in good mechanical condition, with any existing faults addressed before tuning.
How much power can a Toyota GR Supra 3.0 make with Stage 2?
Our quoted Stage 2 figures are up to 500HP and 690Nm. The final result depends on the supporting hardware, fuel quality and overall condition of the vehicle.
What upgrades are needed for Stage 2?
Stage 2 requirements depend on the vehicle and intended setup. Supporting upgrades may include a suitable downpipe or sports catalyst, upgraded intake, larger intercooler and performance exhaust. We can assess your current modifications and advise accordingly.
Which ECU does the Toyota GR Supra 3.0 A91 use?
The listed ECU for this Toyota GR Supra 3.0 A91 application is Bosch MG1CS201. The exact software and vehicle specification should be checked before tuning.
Can I have gearbox tuning on my Toyota GR Supra?
We can check the gearbox fitted to your vehicle and advise whether compatible gearbox tuning options are available.
Can you service my Toyota GR Supra?
Yes. We offer servicing, oil and filter changes, spark plug replacement, diagnostics, brake work, cooling system checks and general maintenance.
Can you supply and fit performance upgrades?
Yes. We can help with suitable intake, intercooler, exhaust, suspension, brake and other performance upgrades.
Can you install a Ghost immobiliser or tracker?
We can advise on Ghost immobilisers, trackers and additional security solutions, subject to vehicle compatibility.
STAGE 3 TUNING
Stage 3 tuning may be available for selected vehicles with suitable supporting hardware upgrades. Contact our team to check availability and discuss the modifications required for your Toyota GR Supra 3.0.
ECU UNLOCKING AND ADDITIONAL REQUIREMENTS
Some vehicles may require an ECU unlock or additional procedures before tuning can be carried out. This can affect the cost and turnaround time.
Our team will advise you beforehand if any additional requirements apply to your Toyota GR Supra.
BOOK YOUR TOYOTA GR SUPRA REMAP
Ready to improve the performance of your Toyota GR Supra 3.0?
Contact Onyx Performance to discuss your tuning requirements or arrange a booking.
Call us on 01753 439321 to book your Stage 1 remap, discuss a Stage 2 package or enquire about our other performance and vehicle services.
Opening Hours:
- Monday to Friday: 10AM-6PM
- Saturday: 10AM-3PM
Please have your vehicle details ready when contacting us so we can advise on the correct tuning options.
Onyx Performance provides professional vehicle tuning, servicing, performance upgrades, styling and security solutions in Slough, Berkshire.
CONTACT ONYX PERFORMANCE
Transform your Toyota GR Supra 3.0 A91 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!



