Description
Elevate your BMW's performance with the JB4 tuner for S58 powered models including the G87 M2, G80 M3, and G82 M4. Experience significant gains with up to 80whp/100wtq on pump gas and up to 150whp/175wtq on higher octane or E85 mixtures. The JB4 tuner transforms your vehicle from stock to race-ready with ease, featuring user-adjustable boost control, smartphone integration, electronic wastegate control, ethanol fuel support, and advanced diagnostic tools.
Key Features:
- Gains of 80whp/100wtq on pump gas, and up to 150whp/175wtq on high octane/E85
- Enhanced 0-60 and 1/4 mile times
- Preloaded with custom JB4 tuning software and up to 8 maps
- Ethanol (E85) compatible tuning maps
- Real-time monitoring of up to 40 engine parameters
- Boost control by gear for optimal launches
- Compatible with JB4 Mobile for smartphone-based logging and tuning
- Quick and easy Plug & Play installation
- CANbus OBDII integration for advanced tuning features
- Maintains stock-like smoothness and fuel economy during normal driving
- Not VIN locked – removable and resellable
- Rugged JB4 billet aluminum enclosure for durability
- Made in the USA with a 5-year warranty and free USA shipping
Vehicle Fitment:
BMW M2
- 2023-Present S58 G87 BMW M2
BMW M3
- 2021-Present S58 G80 BMW M3
- 2021-Present S58 G80 BMW M3 Competition
BMW M4
- 2021-Present S58 G82 BMW M4
- 2021-Present S58 G82 BMW M4 Competition
- 2023-Present S58 G82 BMW M4 CSL
- 2022-Present S58 G83 BMW M4 Convertible
Connect your JB4 wirelessly to Bluetooth 4.0 compatible iOS and Android® devices via the JB4 Mobile connect kit or to your Windows® laptop with the BMS data cable. Record and analyze data, switch maps, and update firmware for enhanced performance and new features. Note: A separate JB4 Mobile app purchase is required.
