N54 BMW JB4 Bluetooth Connect Kit - Unpinned Version (Rev 3.7), UG-JB4BCK

For N54 BMW owners running older square-case JB4 units (Rev 3.7), this is the unpinned power wire Bluetooth kit - no guesswork, no US shipping delays.

• Plug-and-play with your existing JB4; no cabin wiring or soldering
• Control maps, read DTCs, datalog, update firmware and monitor live engine data on iOS or Android
• Unpinned design essential for Rev 3.7 boards - incompatible with newer pinned versions
• Real-time gauges, custom themes, log export and phone charging while connected
• Confirmed fit for N54, plus N55, B58, EA888 and EA211 - but only if you’re using a compatible JB4 unit