Bench Unlock Service – Toyota GR Supra B58 (Pre-06/2020) | MHD Compatible

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:

• MHD
  

(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 to send the DME to Sequential Racing