BMW X3 M50 xDrive G45 Remapping and Tuning
Upgrade your BMW X3 M50 xDrive 398HP with professional Stage 1 and Stage 2 ECU tuning from Onyx Performance in Slough, Berkshire.
The BMW X3 M50 xDrive G45 features a 3.0-litre B58 turbocharged petrol engine with mild-hybrid (MHEV) technology, delivering strong performance, refined everyday driving and the added traction of xDrive all-wheel drive. Our tailored ECU remapping options optimise engine performance, throttle response and torque delivery, helping you unlock more of your X3’s potential while maintaining a smooth and refined driving experience.
BMW X3 M50 xDrive Performance Figures
Standard Performance
- Power: 398HP
- Torque: 580Nm
Stage 1 Remap
- Power: 470HP
- Torque: 650Nm
- Price: £599.00
Stage 2 Remap
- Power: 510HP
- Torque: 700Nm
- Price: Call for a Stage 2 quote
Performance figures are indicative and may vary depending on vehicle condition, fuel quality, modifications and individual vehicle specifications. Stage 2 tuning may require supporting hardware upgrades. As this model incorporates mild-hybrid technology, tuning compatibility should be confirmed for the specific vehicle and software version.
Gearbox Tuning
Optimise your BMW X3 M50 xDrive’s transmission with professional gearbox tuning. A gearbox remap can improve shift speed, shift logic and torque management, helping deliver a more responsive and engaging driving experience.
- Stage 1 Gearbox Remap: Contact for Price
- Stage 2 Gearbox Remap: Contact for Price
- Stage 3 Gearbox Remap: Contact for Price
Contact Onyx Performance to discuss the most suitable gearbox tuning option for your vehicle.
BEFORE TUNING
Before remapping your BMW X3 M50 xDrive, we recommend ensuring your vehicle is mechanically sound and properly maintained. Any existing engine, transmission or drivetrain faults should be diagnosed and resolved before tuning.
Our team can discuss your vehicle’s condition, intended use and performance goals to help determine the most suitable remapping package. Compatibility should be checked for the vehicle’s ECU software and mild-hybrid system before work begins.
SERVICING AND MAINTENANCE
Regular servicing is essential for maintaining the performance and reliability of your BMW X3 M50 xDrive. We recommend keeping up with scheduled oil changes, using the correct manufacturer-approved fluids and ensuring that filters, spark plugs, cooling systems and other key components are in good condition.
Following an appropriate maintenance schedule is particularly important for a turbocharged performance engine. Keeping the mild-hybrid system maintained in accordance with manufacturer recommendations is also important.
EXHAUST UPGRADES
Enhance the sound and character of your BMW X3 M50 xDrive with performance exhaust upgrades. Depending on your goals and selected hardware, exhaust modifications can alter exhaust tone, improve exhaust flow and complement your vehicle’s overall performance setup.
Our team can help you explore suitable exhaust options while considering noise regulations, emissions requirements and road legality.
PERFORMANCE UPGRADES
Get more from your BMW X3 M50 xDrive with performance upgrades tailored to your goals. Depending on the chosen tuning stage, supporting modifications may include intake upgrades, improved intercooling, exhaust components and other hardware designed to support increased power output.
We can advise on compatible modifications and help you choose a suitable setup for road use or track-focused performance.
STYLING AND BODY UPGRADES
Personalise your BMW X3 M50 xDrive with styling enhancements that complement its sporty SUV design. Options may include exterior styling components, aerodynamic enhancements, wheel upgrades and other visual modifications.
Contact our team to discuss available options for your vehicle.
VEHICLE SECURITY
Protect your BMW X3 M50 xDrive with vehicle security solutions designed to provide additional peace of mind. We can discuss suitable security upgrades based on your vehicle, usage and requirements.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance, we provide professional vehicle tuning and performance solutions with a focus on quality, careful calibration and customer service.
- Professional Stage 1 and Stage 2 ECU remapping
- Tailored tuning solutions for your vehicle
- Gearbox tuning options
- Advice on supporting performance modifications
- Performance, exhaust, styling and security solutions
- Convenient service in Slough, Berkshire
Our aim is to help you get the most from your BMW while choosing upgrades appropriate to your requirements.
REMAPPING IN SLOUGH
Onyx Performance provides BMW remapping and tuning services in Slough, Berkshire. Whether you want improved everyday drivability, stronger acceleration or a more performance-focused setup, our team can help you explore the available options for your BMW X3 M50 xDrive G45.
Contact us to discuss your vehicle, confirm compatibility and arrange your remapping appointment.
Frequently Asked Questions
How much power can a Stage 1 remap give my BMW X3 M50 xDrive?
The listed Stage 1 figures are up to 470HP and 650Nm, compared with the standard 398HP and 580Nm. Actual results can vary depending on vehicle condition, fuel quality and other factors.
How much power can a Stage 2 remap give my BMW X3 M50 xDrive?
The indicative Stage 2 figures are up to 510HP and 700Nm. Stage 2 tuning may require supporting hardware modifications. Contact us for a tailored quote and compatibility advice.
Do I need hardware upgrades for Stage 2 tuning?
Supporting modifications may be required depending on the target performance and vehicle setup. We can advise on suitable hardware before proceeding.
Can you remap the gearbox on my BMW X3 M50 xDrive?
Gearbox tuning options may be available depending on the installed transmission and software compatibility. Contact us to discuss the appropriate package.
Do you offer dyno sessions?
Yes. Dyno sessions are available at £120.00. Contact us to confirm availability and arrange a session.
Is Stage 3 tuning available?
Stage 3 setups generally involve more extensive hardware modifications and a tailored calibration. Contact Onyx Performance to discuss your goals, supporting modifications and whether a suitable setup is available for your vehicle.
Does my BMW need an ECU unlock before remapping?
ECU access requirements can vary depending on the ECU version, software and vehicle production details. The listed ECU is Bosch MG1CS201, but compatibility and any unlock requirements should be confirmed before booking. The mild-hybrid configuration may also affect tuning access and compatibility.
BOOK YOUR REMAP
Ready to enhance your BMW X3 M50 xDrive G45? Contact Onyx Performance to discuss Stage 1 tuning, a Stage 2 quote, gearbox remapping or supporting performance upgrades.
Our team in Slough, Berkshire, can help you identify the most suitable options for your vehicle and performance goals.
Contact Onyx Performance
Transform your BMW X3 M50 xDrive G45 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!
