BMW 730d G11/G12 Remapping and Tuning
Upgrade your BMW 730d G11/G12 265HP with professional Stage 1 and Stage 2 ECU tuning from Onyx Performance in Slough, Berkshire. Our remapping solutions are designed to unlock the potential of the 3.0-litre B57 turbocharged diesel engine, delivering increased power, stronger torque and sharper throttle response while maintaining everyday drivability.
Whether you drive your 730d Saloon or long-wheelbase model for daily commuting, executive travel or long-distance journeys, our tailored ECU calibration can provide a more responsive and refined driving experience with improved acceleration and overtaking performance.
BMW 730d G11/G12 Performance Figures
| Specification | Power | Torque |
|---|---|---|
| Standard Performance | 265HP | 620Nm |
| Stage 1 Remap | 330HP | 700Nm |
| Stage 2 Remap | 350HP | 730Nm |
Stage 1 Remap: £349.00
Original Price: £418.80
Stage 2 Remap: Call for a quote
Performance figures are indicative and may vary depending on vehicle condition, fuel quality, hardware modifications and individual engine specifications. Stage 2 tuning may require supporting hardware upgrades.
Gearbox Tuning
Enhance your BMW 730d with gearbox tuning designed to complement your engine remap. Depending on the transmission and control unit fitted, calibration can improve shift behaviour, responsiveness and torque management for a smoother and more 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 our team to discuss gearbox compatibility and the most suitable calibration for your vehicle.
BEFORE TUNING
Before remapping your BMW 730d, we recommend a comprehensive vehicle health check. The B57 engine, turbocharger, fuel system, cooling system, emissions equipment and drivetrain should be in good condition before increasing performance.
Any existing fault codes or mechanical issues should be investigated before tuning begins. The condition of the diesel particulate filter (DPF), exhaust gas recirculation (EGR) system and other emissions components should also be assessed.
SERVICING AND MAINTENANCE
Regular maintenance is essential for preserving the reliability and performance of your BMW 730d. We recommend following the appropriate servicing schedule and using quality engine oil, filters and other components suitable for the B57 diesel engine.
Vehicles operating at increased power levels may benefit from more frequent servicing, depending on driving style and usage.
EXHAUST UPGRADES
An exhaust upgrade can complement your BMW 730d remap when compatible components are selected for your vehicle. Available options may include approved performance exhaust components designed to complement exhaust flow and vehicle refinement.
All modifications should comply with applicable road-use, emissions and noise regulations. Emissions-control equipment should remain compliant with legal requirements.
PERFORMANCE UPGRADES
Get more from your BMW 730d with carefully selected performance upgrades. Depending on your goals and current setup, options may include:
- Performance intake components
- Upgraded charge-air cooling
- Turbocharger upgrades
- Supporting cooling-system enhancements
- Performance braking and suspension upgrades
For Stage 2 tuning, our team can advise on the supporting modifications required for your particular vehicle.
STYLING AND BODY UPGRADES
Personalise your BMW 730d with styling enhancements that complement its elegant executive design. Options may include front splitters, rear diffusers, wheel upgrades and other exterior styling accessories, subject to compatibility with the G11 or G12 model.
VEHICLE SECURITY
Protect your BMW 730d with suitable vehicle security solutions. We can discuss available security enhancements and anti-theft options to help protect your vehicle against theft and unauthorised access.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance, we provide tailored tuning solutions designed around your vehicle and performance goals. Our services focus on:
- Vehicle-specific ECU calibration
- Stage 1 and Stage 2 remapping options
- Advice on supporting performance modifications
- Gearbox tuning enquiries
- Performance, styling and security solutions
- Professional service in Slough, Berkshire
REMAPPING IN SLOUGH
Onyx Performance offers BMW remapping and tuning services in Slough, Berkshire. Whether you’re looking for a Stage 1 calibration for improved everyday performance or a Stage 2 setup with suitable supporting modifications, our team can help you choose the right solution for your BMW 730d G11/G12.
Contact us to discuss your vehicle, tuning requirements and available appointment options.
Frequently Asked Questions
How much power can a Stage 1 remap add to my BMW 730d?
The supplied indicative Stage 1 figures are 330HP and 700Nm, compared with the standard figures of 265HP and 620Nm. Actual results depend on vehicle condition, fuel quality, hardware and calibration.
How much power can a Stage 2 remap produce?
The supplied indicative Stage 2 figures are 350HP and 730Nm. Stage 2 tuning may require supporting hardware modifications. Contact us for a quote and advice on your vehicle’s setup.
Does my BMW 730d need hardware upgrades?
Stage 1 tuning may be possible on a standard, healthy vehicle, subject to its condition and ECU compatibility. Stage 2 tuning can require supporting hardware, depending on the calibration and installed components.
Can you remap the gearbox?
Gearbox tuning may be available depending on the transmission and control unit fitted. Contact us to confirm compatibility and discuss the available options.
Do you offer dyno sessions?
Yes. A dyno session is available for £120.00. Contact us to discuss testing and availability.
Is Stage 3 tuning available?
Stage 3 tuning depends on the turbocharger, fuel system, supporting hardware and overall vehicle setup. Contact us to discuss your performance goals and the modifications required.
Does my BMW 730d require an ECU unlock?
ECU access requirements depend on the ECU hardware, software version and vehicle production details. The listed ECU is Bosch MD1CP002, but compatibility and any unlock requirements should be confirmed against your vehicle before booking.
BOOK YOUR REMAP
Ready to unlock the potential of your BMW 730d G11/G12? Contact Onyx Performance to discuss Stage 1 remapping, Stage 2 tuning, gearbox calibration and supporting performance upgrades.
Stage 1 Remap: £349.00
Stage 2 Remap: Call for a quote
Location: Slough, Berkshire
Contact Onyx Performance
Transform your BMW 730d G11/G12 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!



