BMW X5M & X6M (F95/F96) Remapping and Tuning – Competition & Non-Competition Models
Unlock the full potential of your BMW X5M & X6M (F-Series – F95/F96, S63 Engine) with Onyx Performance, based in Slough, Berkshire, just outside West London. Whether you own a standard model or the Competition version, our bespoke ECU and gearbox remapping, servicing, and performance upgrades are designed to enhance power, torque, and overall driving experience while maintaining reliability.
Our tuning packages are custom-tailored for both Competition and non-Competition models, ensuring maximum gains from the S63 twin-turbocharged V8 engine.
⚠️ For BMW X5M & X6M models manufactured after June 2020, an ECU unlock is required before tuning. This is done via Femto ECU unlocking services in Finland, which takes up to 5 working days.
BMW X5M & X6M (F-Series) Stage 1 & Stage 2 – Power Gains
Stage 1 – Power Gains:
- Stock Power (Non-Competition Model): 600HP / 750Nm
- Stock Power (Competition Model): 625HP / 750Nm
- Stage 1 Remap (Both Models): Up to 730HP / 900Nm
- Hardware Required: None
Our Stage 1 remap delivers a huge increase in power and torque without requiring any hardware upgrades. The S63 engine benefits from improved turbo efficiency, sharper throttle response, and faster acceleration, all while keeping factory reliability and smooth drivability.
Stage 2 – Power Gains:
- Stock Power (Non-Competition Model): 600HP / 750Nm
- Stock Power (Competition Model): 625HP / 750Nm
- Stage 2 Remap (Both Models): Up to 780HP / 950Nm
- Hardware Required:
- 🔧 Decat Downpipe or High-Flow Sports Catalyst
- 🔧 XHP Stage 2 Gearbox Software (Highly Recommended for Automatic Models)
Stage 2 tuning builds upon the gains from Stage 1 by increasing airflow and cooling efficiency, allowing for stronger power delivery and improved turbo efficiency.
ECU Unlocking for BMW X5M & X6M (June 2020 Onwards)
⚠️ For BMW X5M & X6M (F-Series) models manufactured after June 2020, the ECU must be unlocked before tuning.
- Your ECU will be unlocked by Femto in Finland, the only company in the world capable of unlocking these ECUs.
- We will send your ECU to Femto via DHL Express, and the process takes 3-5 working days, including unlocking.
- Note: While we use secure DHL Express services, any lost or missing ECU parcels are at the customer’s risk. However, we will assist in advising on the next steps if any issue arises.
Once the ECU is returned unlocked, your car will be mapped in-house at Onyx Performance to optimise performance, power, and drivability.
Looking for Even More Power?
For enthusiasts seeking maximum performance, we offer Stage 3 tuning packages featuring upgraded turbos, methanol injection, high-pressure fuel pumps, and additional supporting modifications for even greater power and torque.
📞 Call us on 01753 439321 to discuss Stage 3 options!
Why Choose Onyx Performance?
At Onyx Performance, we specialise in BMW X5M & X6M (F-Series) tuning and provide a range of services to ensure your BMW operates at peak performance while maintaining reliability:
- ✔ Rolling Road (Dyno) Testing for precise power measurement
- ✔ Data Logging and Diagnostics to ensure optimal engine performance
- ✔ Before and After Performance Printouts
- ✔ Engine Smoke Tests to check for Boost/Vacuum Leaks
- ✔ Optional Features: Overrun Crackles, Speed Limiter Removal, and Catalyst Fault Code Deletes
Our expert team ensures your BMW X5M or X6M delivers improved power, torque, and response, while maintaining engine safety and drivability.
Exhaust Upgrades for BMW X5M & X6M (F-Series)
Enhance the sound and performance of your X5M or X6M with a high-performance exhaust system:
- 🔧 Decat Downpipes – Improves turbo efficiency and exhaust flow for maximum power
- 🔧 High-Flow Sports Catalysts – Reduces backpressure while remaining emissions compliant
- 🔧 Cat-Back Exhaust Systems – Enhances exhaust tone and sound quality
- 🔧 Resonator Deletes – Adds a sportier, aggressive exhaust note
Pairing Stage 2 tuning with a decat downpipe or high-flow sports catalyst allows for maximum power gains and an enhanced exhaust note.
Servicing and Maintenance for BMW X5M & X6M (F95/F96)
Keeping your BMW X5M or X6M (F-Series – F95/F96) in top condition is essential for long-term reliability and performance. At Onyx Performance, we offer specialist servicing and maintenance packages tailored to high-performance BMW M models.
Our BMW X5M & X6M Maintenance Services Include:
- 🛠️ Routine Servicing: Oil changes, filter replacements, and full vehicle health checks
- 🛠️ Brake Repairs and Upgrades: OEM brake replacements and performance brake kits for enhanced stopping power
- 🛠️ Suspension Maintenance: Inspection, optimisation, and upgrades for better handling and ride comfort
- 🛠️ Diagnostics and Fault Repairs: Advanced diagnostics to identify and resolve potential issues before they escalate
With our expertise in BMW S63-powered models, you can trust Onyx Performance to maintain, optimise, and enhance your X5M or X6M with precision and care.
Styling, Performance Upgrades & Vehicle Security for BMW X5M & X6M (F95/F96)
Elevate your BMW X5M or X6M (F-Series – F95/F96) with custom styling, performance upgrades, and vehicle security solutions tailored to your needs.
Styling and Performance Upgrades:
- 🏎️ Aero Kits & Carbon Fibre Components – Aggressive styling with improved aerodynamics
- 🏎️ Lowering Springs & Coilovers – Enhanced handling and a sportier stance
- 🏎️ Big Brake Kits – High-performance braking solutions for track and road use
Vehicle Security Solutions:
Protect your BMW X5M or X6M with state-of-the-art vehicle security systems, ensuring peace of mind and maximum protection:
- 🔒 Autowatch Ghost Immobilisers – Advanced anti-theft system preventing key cloning and unauthorised starts
- 🔒 MetaTrak Trackers – Live GPS tracking with mobile app integration for real-time vehicle location
- 🔒 Scorpion Track Systems – Motion alerts, driver recognition, and enhanced vehicle recovery features
- 🔒 Fleet Trackers – Ideal for monitoring multiple high-value vehicles with location tracking and driver behaviour analytics
All security systems are professionally installed to provide seamless integration and superior protection for your BMW X5M or X6M.
10 Frequently Asked Questions (FAQs) About BMW X5M & X6M Tuning
- What is the power increase for Stage 1 tuning on my BMW X5M/X6M?
Stage 1 tuning increases power to 730HP / 900Nm without hardware upgrades. - How much power can I gain with Stage 2 tuning?
Stage 2 tuning increases power to 780HP / 950Nm, requiring hardware upgrades. - Does my X5M/X6M require an ECU unlock for tuning?
If your car was manufactured after June 2020, it will require a Femto ECU unlock before tuning. - How long does the ECU unlock process take?
The Femto ECU unlocking process takes 3-5 working days. - Can my car be tuned without removing the ECU?
Cars before June 2020 do not require ECU removal. Newer models require the ECU to be removed and sent to Finland for unlocking. - What exhaust modifications do I need for Stage 2?
Stage 2 tuning requires a decat downpipe, panel air filters, and exhaust mid pipes. - Will tuning void my BMW warranty?
Tuning may void the manufacturer’s warranty, but we provide an optional warranty package for added protection. - Can I return my ECU to stock settings?
Yes, we can restore your ECU to factory settings upon request. - Do you offer finance options for tuning?
Yes, we offer flexible finance plans over 4 monthly payments. - Where are you located?
We are based in Slough, Berkshire, just outside West London.
Contact Onyx Performance
Transform your BMW X5M or X6M (F-Series) 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!
Tags:
BMW X5M & X6M (F95/F96) tuning in Slough
BMW X5M Stage 1 remap (730HP / 900Nm)
BMW X6M Stage 2 tuning with performance exhaust (780HP / 950Nm)
Downpipe upgrades for BMW X5M & X6M (S63)
Femto ECU Unlock for BMW X5M & X6M (F-Series) June 2020+
Servicing and maintenance for BMW X5M & X6M
Vehicle security for BMW with trackers and immobilisers
Big brake kits for BMW X5M & X6M
Unlock the true potential of your BMW today!







