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This proprietary USB cable connects the JB control box to your laptop, for use with the new datalogging, tuning, and map loading software. Cable may be left in engine bay and routed in the window or door when needed for a simple install. Alternatively it may also be routed behind the ECU in to the glove box for a clean install and on the fly access. Please do not attempt to use a standard RS232/USB cable with the JB3/JB4 as it will not work and may damage the processor.
Works for N54 JB4 tunes, N55 JB Tunes and N20/N26 JB Tunes
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