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Burger Motorsports MINI Cooper S F56 JB4 B38/B46/B48

How about up to 40hp to the wheels (50hp crank) on a completely stock B48 on pump gas? The JB4 features a simple plug and play installation harness for easy installation and includes many features not found on any other tune. Including on the fly in dash map switching between factory and various performance maps, optional in dash gauge displays for boost, boost limiting by gear for improved traction in lower gears, E85 fuel support, progressive water/methanol support, built in data logging, built in code reading, and much more.

Remember the JB4 does not require any additional modifications or previous stages. Simply install the JB4 as your first and only modification and enjoy an entirely new fast and smooth racing experience. The JB4 also does not require any user setup or customisation but for more advanced enthusiasts the BMS DATA cable allows you to connect via a laptop for data logging and free software updates.

The latest B38/B48 map guide, feature set, firmware updates, and directions are posted here.


  • 2014-2019 MINI Cooper S B38/B46/B48
  • 2020+ MINI Cooper S and JCW

Please note that both versions are identical hardware wise, it's just the pre-loaded firmware and settings that differ. If you purchase the data cable or bluetooth kit, the firmware and settings can be changed by the customer.