Ford Mustang GT S650 Remapping and Tuning
Upgrade your Ford Mustang GT 446HP with professional Stage 1 and Stage 2 ECU tuning from Onyx Performance in Slough, Berkshire. Our remapping options are designed to enhance the performance of the 5.0 V8 Coyote naturally aspirated petrol engine, delivering improved power, torque, throttle response and overall drivability.
The Ford Mustang GT S650 combines iconic V8 character with modern performance technology. Professional ECU calibration can optimise the engine’s performance, sharpen throttle response and unlock additional power while retaining the distinctive driving experience of the Mustang.
Ford Mustang GT Performance Figures
| Performance | Power (HP) | Torque (Nm) |
|---|---|---|
| Standard Performance | 446 | 540 |
| Stage 1 Remap | 475 | 570 |
| Stage 2 Remap | 500 | 590 |
Stage 1 Remap Price: £799.00
Original Price: £958.80
Stage 2 Remap: Call for a Stage 2 quote
All performance figures are indicative and can vary depending on vehicle condition, fuel quality, hardware specification and other factors.
Gearbox Tuning
A gearbox remap can complement your engine tuning by optimising gearshift behaviour, improving response and helping the transmission make better use of the available power and torque.
Available gearbox tuning options:
- Stage 1 Gearbox Remap: Contact for Price
- Stage 2 Gearbox Remap: Contact for Price
- Stage 3 Gearbox Remap: Contact for Price
BEFORE TUNING
Before any remapping work, we recommend checking that your Ford Mustang GT is in good mechanical condition. The engine, ignition system, cooling system and transmission should be operating correctly. We can discuss any concerns and advise on the suitability of tuning for your vehicle.
SERVICING AND MAINTENANCE
Regular servicing is important for maintaining performance and reliability, particularly on a high-performance V8 engine. We recommend using the correct quality engine oil, keeping up with scheduled maintenance and checking filters, spark plugs and other service items.
EXHAUST UPGRADES
An upgraded exhaust system can complement ECU tuning by improving exhaust flow and enhancing the sound of your Mustang’s V8 engine. We can advise on suitable performance exhaust options to match your vehicle and intended setup.
PERFORMANCE UPGRADES
Further performance improvements may be possible with suitable supporting modifications. Depending on your goals, options can include intake upgrades, exhaust enhancements, cooling improvements and other performance hardware. We can help you choose upgrades that work with your tuning requirements.
STYLING AND BODY UPGRADES
Enhance the appearance of your Ford Mustang GT with styling upgrades selected to suit its muscular design. From exterior enhancements to carefully chosen finishing touches, we can help you explore options for your vehicle.
VEHICLE SECURITY
Protect your vehicle with suitable security solutions. We can discuss available vehicle security upgrades and help you choose options that provide additional peace of mind.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance, we focus on delivering professional vehicle tuning and performance upgrades tailored to each vehicle. Our team can help you understand the available tuning stages, expected performance improvements and any supporting modifications that may be required.
REMAPPING IN SLOUGH
Onyx Performance provides vehicle remapping and tuning in Slough, Berkshire. Whether you are looking for a Stage 1 ECU remap or want to discuss a more extensive Stage 2 setup for your Ford Mustang GT, contact our team to discuss your requirements.
Frequently Asked Questions
How much power can a Stage 1 remap add to my Ford Mustang GT?
The standard Ford Mustang GT S650 produces 446HP and 540Nm. Our indicative Stage 1 figures are up to 475HP and 570Nm, depending on vehicle condition, fuel quality and specification.
How much power can a Stage 2 remap produce?
Our indicative Stage 2 figures are up to 500HP and 590Nm. Stage 2 tuning may require supporting hardware modifications, depending on the vehicle’s existing specification and the desired results. Contact us for a quote.
Do I need hardware upgrades for Stage 1 or Stage 2?
A Stage 1 remap is generally designed for a vehicle with standard hardware in good condition. Stage 2 tuning may require supporting modifications, such as suitable intake or exhaust upgrades. We can advise on the requirements for your setup.
Can I have a gearbox remap with my engine remap?
Yes. A gearbox remap can be carried out alongside engine tuning where compatible. Contact us to discuss the available gearbox software options for your vehicle.
Can I have a dyno session?
Yes. Dyno sessions are available at £120.00. A dyno session can help assess your vehicle’s performance before or after tuning.
Do you offer Stage 3 tuning?
Stage 3 tuning may be possible with more extensive hardware modifications. Contact Onyx Performance to discuss your performance goals and the suitability of a Stage 3 setup.
Does my Ford need an ECU unlock?
Your Ford Mustang GT S650 may use Bosch MG1CS036 or Bosch MG1CS040, depending on model year and ECU specification. The exact ECU should be verified before tuning. Whether an ECU unlock is required depends on the hardware, software version and available access method. We can check compatibility before carrying out work.
BOOK YOUR REMAP
Ready to unlock more performance from your Ford Mustang GT? Contact Onyx Performance to discuss your tuning options, confirm ECU compatibility and arrange your remap in Slough, Berkshire.
Contact Onyx Performance
Transform your Ford Mustang GT S650 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!
