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JB4 Direct CANbus Harness for BMW G-Chassis B58/S58 and GR Supra
engine accessories
Burger Motorsports
Burger Motorsports
Manufacturer SKU not provided

JB4 Direct CANbus Harness for BMW G-Chassis B58/S58 and GR Supra

Pricing

EUR 148

USD 170 · UAH 7,820

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What the Direct CANbus harness does

The plug-and-play harness connects JB4 directly to CANbus at the ECU, avoiding routing an OBDII/CAN cable through the firewall into the cabin. This simplifies installation and frees the OBDII port for another scan tool.

Operating requirements and passive mode

Compatible JB4/JB4PRO firmware and settings are required; for JB4PRO B58/S58, the supplier specifies option 11 to enable and option 12 for passive mode. Passive mode uses read-only basic channels; AFR and timing corrections may be unavailable. Not compatible with 2025+ Gen3 B48/B58.

Fitment

For supported BMW G-Series B58/S58 and B58 Toyota Supra configurations. Verify firmware and pinout before ordering.