BMW S58 JB4 Tuner with Bluetooth
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BMW S58 JB4 Tuner with Bluetooth

$948.00
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JB4 Tuner with Bluetooth Adapter BMW 2021 - 2023 M2 M3 M4 G8X The ultimate tune for your S58 powered G87 M2, G80 M3, or G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user-adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control, ethanol fuel support, and built-in advanced CANbus-based diagnostic tools. Installation is easy and completely removable with no splicing or cutting of factory wires making the JB4 an excellent choice for your S58 engine.For the latest S58 performance results, updates, firmware, and map guide, be sure to visit JB4Tech.com Wirelessly connect the S58 JB4 to your Bluetooth 4.0 compatible iOS and Android® device via the JB4 Mobile connect kit or to your Windows® laptop with the BMS data cable. Both options allow you to record and analyze vehicle and tuning data, change J

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