JB4 N54 2 STEP / NLS Relay
JB4 N54 2 STEP / NLS Relay is backordered and will ship as soon as it is back in stock.
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The relay kit requires a JB4, back end flash map, and BMS data cable or JB4 mobile connect kit. Note that we've modified the JB4 firmware recently so that the clutch wire is no longer required simplifying the installation. Update your JB4 firmware before or after installation to v32_15 for twin turbo or v13_7 for single turbo to enable.
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