For owners of BMWs with the S58 engine, chip tuning is becoming one of the key steps to achieving maximum performance. The stock engine has great potential for increasing engine power by retuning the control unit, but this requires the right tools. That is why the JB4 S58 chip tuner from Burger Motorsports is gaining popularity in Ukraine among motorsports enthusiasts.
What is BMS JB4 S58?
JB4 S58 is a plug&play engine programming kit for BMW X3M (F97) and X4M (F98). This tuner connects directly to the factory wiring and the engine control unit, intercepting sensor signals.
JB4 allows you to optimize boost, fuel pressure, ignition and other parameters without physically interfering with the original software. Importantly, JB4 retains the ability to quickly return to stock, and also provides monitoring of indicators via a mobile application.

Main advantages of JB4
- Increasing the power of the BMW S58 to +80–100 hp by customizing the control unit firmware
- Easy gadget connection without soldering or flashing
- Full mobile app support for data monitoring: boost, AFR, intake temperature, etc.
- Customizing engine settings
- Read and reset error codes easily in the app
- Instantly switch between stock and custom settings
- Availability of separate maps for track days
Product code: S58 JB4F97F98
JB4 S58 Suitable for cars
BMW X3M
- 2020-Present S58 F97 BMW X3M
- 2020-present S58 F97 BMW X3M Competition
BMW X4M
- 2020-Present S58 F98 BMW X4M
- 2020-Present S58 F98 BMW X4M Competition
Installation and setup
Installation of the JB4 S58 takes about 1 hour and can be done either independently or in a specialized service. The wiring harness connects to the stock sensors without damaging the original wiring.

Once connected, the system is automatically detected by the JB4 mobile app, where you can select maps, adjust parameters and monitor engine performance in real time. For track day participants, JB4 allows you to quickly adapt parameters to specific conditions.
Equipment
- JB4 main module with integrated microcontroller
- Wiring harness for connection to sensors (MAP, EWG, TMAP)
- Bluetooth module for connecting to a smartphone ( optional )
- Installation and setup instructions

Ordering at ATOMIC-SHOP
You can buy JB4 S58 in Ukraine at ATOMIC-SHOP — the official retailer of Burger Motorsports . We guarantee the originality of the products and expert advice when choosing a chip tuner. To learn more about tuning BMW X4M S58 and order BMS JB4 S58 , contact our managers or place an order online.
Your BMW deserves maximum potential - don't wait, discover a new level of performance with the BMS JB4 S58!