S68 JB4 Tuner for 2023+ BMW XM & 2024+ BMW X5M / X6M

Gains are 125whp on pump gas and up to 260whp on higher octane or E85 mixtures. The ultimate tune for your 4.4L S68 powered BMW XM, X5M, & X6M. 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 S68 engine.For the latest S68 performance results, updates, firmware, and map guide, be sure to visit https://www.jb4tech.com/forum/model-specific-engine-tuning-modification-discussion/m/822883-jb4-for-new-bmw-s68-hybrid-dyno-testing#post822883 Wirelessly connect the S68 JB4 to your Bluetooth 4.0 compatible iOS and Android® device via the JB4 M