BMW 120d, 220d, 320d, 420d, 520d (F-Series, B47 Engine) Remapping – Stage 1 & Stage 2
Unlock the full potential of your BMW 120d, 220d, 320d, 420d, or 520d (F-Series, B47 Engine) with Onyx Performance, the UK’s leading BMW tuning specialists. Our extensively developed Stage 1 and Stage 2 ECU and gearbox software is dyno-tested in-house to ensure maximum power, torque, and reliability.
Why Choose Onyx Performance?
✔ Dyno-Tested Custom Tuning – Precision-engineered software for optimal performance and safety
✔ Stage 1 & Stage 2 Remaps – Custom calibrations for enhanced power, efficiency, and throttle response
✔ Full Diagnostics & Data Logging – Ensuring safe and reliable performance gains
✔ BMW B47 Engine Specialists – Years of experience tuning BMW diesel engines
✔ Optional Gearbox Tuning – For faster shifts, improved response, and enhanced torque handling
BMW 120d, 220d, 320d, 420d, 520d – Stage 1 & Stage 2 Power Gains
Stage 1 Remap – Performance Upgrade on Stock Hardware
✔ Stock Power: Factory output varies by model
✔ Stage 1 Remap: +50HP / +80Nm
✔ Hardware Required: None
Our Stage 1 remap is designed to optimise turbo boost, fuel delivery, and throttle response, providing a significant increase in power and torque while maintaining reliability.
Stage 2 Remap – Maximum Performance with Supporting Mods
✔ Stock Power: Varies by model
✔ Stage 2 Remap: Figures depend on modifications
✔ Hardware Required:
- DPF Delete (For off-road use only)
- Upgraded Air Intake System
- Larger Intercooler
- Onyx Performance Stage 2 Gearbox Software (Recommended for automatic models)
Stage 2 tuning builds upon Stage 1 by increasing airflow, cooling efficiency, and overall engine performance, resulting in higher power output and improved drivability.
Looking for even more power? We offer custom Stage 3 hybrid turbo packages for extreme performance builds.
Onyx Performance – BMW 120d, 220d, 320d, 420d, 520d Remap Service Includes:
✔ Rolling Road (Dyno) Session – Measured and tested tuning for accurate performance results
✔ Before & After Printouts – Compare stock vs tuned power figures
✔ Engine Smoke Test – Detects boost or vacuum leaks before tuning
✔ Sports Displays Recalibrated – Matches higher power outputs
✔ Catalyst Efficiency Fault Code Delete (Optional)
✔ Speed Limiter Removal – Unlocks factory speed restrictions
✔ Diagnostic Health Check – Ensures your engine is running optimally before and after tuning
Servicing & Maintenance for BMW B47 Diesel Models
To keep your BMW 120d, 220d, 320d, 420d, or 520d running at peak performance, regular servicing and maintenance is essential. At Onyx Performance, we offer:
? Routine Servicing – Oil & filter changes, EGR cleaning, and essential maintenance
? DPF & EGR Solutions – Cleaning, repairs, and removal for off-road use only
? Turbo & Intake System Inspections – Ensuring optimal airflow and boost performance
? Suspension & Handling Checks – For improved ride comfort and stability
? Diagnostics & Fault Code Reading – Advanced scans for early detection of engine and gearbox issues
We also provide digital service history updates for all BMW models to keep your records accurate.
Vehicle Security – Protect Your BMW Diesel from Theft
BMW models are frequently targeted for theft, especially high-performance B47 diesel variants. At Onyx Performance, we offer advanced security solutions, including:
? Autowatch Ghost Immobilisers – Prevents key cloning and unauthorised access
? MetaTrak GPS Trackers – Real-time tracking and monitoring via mobile app
? Scorpion Track Systems – Driver recognition and motion alerts
? Fleet Tracking Solutions – Ideal for owners with multiple high-value vehicles
All security systems are professionally installed for maximum protection.
Why Choose Onyx Performance for BMW Diesel Tuning?
✔ BMW Diesel Tuning Specialists – Decades of experience optimising B47 and other diesel engines
✔ Dyno-Proven Results – All remaps developed in-house for accuracy and reliability
✔ Safe & Reliable Tuning – Maintains engine longevity and fuel efficiency
✔ Comprehensive Performance Solutions – From Stage 1 tuning to full custom builds
✔ Flexible Finance Options – Spread the cost of your remap, servicing, or security upgrades
Book Your BMW B47 Diesel Remap or Servicing Today!
? Onyx Performance – Slough, Berkshire – The UK’s leading BMW diesel tuning specialists. Whether you’re looking for Stage 1 or Stage 2 tuning, DPF solutions, servicing, or vehicle security, we have the expertise to transform your BMW 120d, 220d, 320d, 420d, or 520d.
? Contact us today to book your tuning service!
? Unlock the full potential of your BMW B47 diesel with Onyx Performance! ?