Unlock your pre-06/2020 Toyota GR Supra B58 ECU for full tuning access with MHD.
Sequential Racing offers a professional bench unlock service for early model GR Supra A90/A91 vehicles equipped with the BMW B58 platform. These earlier ECUs require a bench unlock before flash tuning can be performed, allowing compatibility with popular tuning platforms such as MHD and Bootmod3.
Once unlocked, the ECU can support Stage 1 and Stage 2 tuning, custom calibrations, ethanol blends such as E30/E40 where applicable, transmission tuning, burble settings, boost adjustments, cold start refinement and more.
This service is ideal for owners looking to safely prepare their GR Supra for tuning while retaining a reliable and proven setup.
What this service enables
Full flash tuning access with:
(Please enquire for full tune services - Melbourne Customers)
Supports:
- Stage 1 tuning
- Stage 2 tuning
- Custom tune calibrations
- Burble adjustments
- Boost adjustments
- Throttle response improvements
- Transmission tuning compatibility
- Ethanol blend tuning where supported by hardware and tune setup
Estimated performance gains
Stage 1 (stock hardware)
- Up to +40 to 70 kW
- Up to +80 to 130 Nm
Stage 2 (downpipe required, intake recommended)
- Up to +70 to 100 kW
- Up to +150 to 220 Nm
- Approx. 470–500 HP overall depending on fuel, tune and supporting modifications
What’s included
- ECU bench unlock service for eligible pre-06/2020 GR Supra B58 vehicles
- ECU removal and reinstallation support for Melbourne customers
- ECU testing after reinstall
- Guidance for next steps with MHD or Bootmod3 flashing
- Return shipping coordination through our shop where applicable
Compatible vehicle
- Toyota GR Supra A90 / A91 B58
- Pre-06/2020 build vehicles requiring bench unlock before flash tuning
Please contact sales@sequentialracing.com.au to send the DME to Sequential Racing.
Quick Facts
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Service: ECU (DME) bench unlock for flash tuning
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Fits: Toyota GR Supra A90/A91 with B58 engine, built before 06/2020
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Enables: MHD flash tuning – Stage 1, Stage 2 and custom calibrations
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Price: From $400 AUD
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Location: Sequential Racing, Altona North, Melbourne – removal and reinstall support for Melbourne customers
Frequently Asked Questions
Which unlock does my GR Supra need?
Supras built before 06/2020 need this bench unlock. Supras built 06/2020 or later have a locked MG1 ECU and need our FEMTO ECU Unlock Service. Not sure? Email your VIN to sales@sequentialracing.com.au.
What can I do after the unlock?
Flash tune with MHD for Stage 1 or Stage 2, plus custom calibrations, burble and boost adjustments, transmission tuning and ethanol blends where your hardware supports it.
How do I get my ECU to you?
Contact us before sending your DME. Melbourne customers can have removal and reinstallation done at our Altona North workshop.