BMW X3M (F97) & X4M (F98) Competition 510HP (S58) – Stage 1 & 2 Tuning
Unleash the Full Potential of Your BMW X3M & X4M Competition with Onyx Performance
The BMW X3M (F97) & X4M (F98) Competition is an exceptionally powerful SUV, equipped with the S58 twin-turbocharged engine, delivering 510HP and 600Nm of torque from the factory. While impressive in stock form, Onyx Performance offers expertly developed ECU and gearbox remaps to take your X3M or X4M to the next level.
Our tuning solutions are developed in-house on our 4WD Dyno, ensuring safe, reliable, and dyno-proven performance gains. Whether you opt for Stage 1 for an instant power increase or Stage 2 for even more aggressive performance, our software maximises power while maintaining drivability and engine safety.
BMW X3M & X4M Competition Stage 1 & Stage 2 Tuning – Power Gains
Stage 1 Remap – Optimised Performance on Stock Hardware
✔ Stock Power: 510HP / 600Nm
✔ Stage 1 Remap: 580-600HP / 750Nm
✔ Hardware Required: None
Stage 1 software delivers a significant performance boost by optimising the factory ECU calibration, refining boost control, throttle response, and turbo efficiency. This results in a more responsive and exhilarating driving experience, with improved mid-range torque and acceleration.
Stage 2 Remap – Maximum Performance with Supporting Mods
✔ Stock Power: 510HP / 600Nm
✔ Stage 2 Remap: 600-660HP / 750-820Nm
✔ Hardware Required:
- Decat Downpipe or High-Flow Sports Catalyst
- Upgraded Air Intake System
- Larger Intercooler
- Onyx Performance Stage 2 Gearbox Software (Recommended for Optimised Shift Speeds & Power Delivery)
Stage 2 software enhances power delivery by improving airflow, cooling, and turbo efficiency, unlocking additional horsepower and torque for a more aggressive, track-ready setup.
Want even more power? We offer Stage 3 hybrid turbo packages and custom performance upgrades for extreme builds. Contact us for more details!
BMW X3M & X4M Competition Servicing & Maintenance
To maintain peak performance and longevity, regular servicing is essential. At Onyx Performance, we offer comprehensive servicing and maintenance tailored to high-performance BMWs.
? Routine Servicing: Oil changes, filter replacements, and general maintenance
? Brake Repairs & Upgrades: OEM brake replacements and high-performance big brake kits
? Suspension & Handling Checks: Ensuring optimal ride quality and cornering stability
? Diagnostics & Health Checks: Identifying and resolving any performance issues
? Turbo & Cooling System Inspections: Keeping boost pressure and cooling efficiency at peak levels
All servicing includes digital service history updates, ensuring your BMW’s records are maintained correctly.
BMW X3M & X4M Competition Security & Immobiliser Solutions
With high-performance SUVs being frequent targets for theft, securing your X3M or X4M is essential. At Onyx Performance, we provide advanced vehicle security solutions, including:
? Autowatch Ghost Immobilisers – Protects against key cloning and theft
? MetaTrak GPS Trackers – Live vehicle tracking via mobile app
? Scorpion Track Systems – Driver recognition and motion alerts
? Fleet Trackers – Ideal for owners with multiple high-value vehicles
All security systems are professionally installed for seamless integration and maximum protection.
Exhaust Upgrades for BMW X3M & X4M Competition – Enhanced Sound & Performance
Maximise sound and performance with a high-performance exhaust upgrade:
? Decat Downpipes – Optimises 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 overall sound quality
? Resonator Deletes – Improves exhaust note with a more aggressive tone
Pairing Stage 2 tuning with an exhaust upgrade ensures maximum power gains and an exhilarating exhaust note.
Why Choose Onyx Performance for BMW X3M & X4M Tuning?
✔ BMW Performance Tuning Specialists – Years of experience tuning high-performance M models
✔ Dyno-Proven Results – All software developed and tested in-house for accuracy and reliability
✔ Safe & Reliable Tuning – Our software maintains engine and transmission longevity
✔ Comprehensive Performance Solutions – From Stage 1 tuning to full custom builds
✔ Flexible Finance Options – Spread the cost of your tuning and upgrades
Book Your BMW X3M or X4M Competition Remap or Servicing Today!
? Onyx Performance – Slough, Berkshire – The UK’s leading BMW tuning specialists. Whether you’re looking for Stage 1 or Stage 2 tuning, exhaust upgrades, servicing, or vehicle security, we have the expertise to transform your BMW X3M or X4M Competition.
? Contact us today to book your tuning service!
? Unleash the full potential of your BMW X3M or X4M Competition with Onyx Performance! ?