Description
Instant Power with Easy Plug & Play Installation
Unlock up to 80whp and 100wtq on pump gas, and up to 120whp and 140wtq on higher octane or E85 mixtures without the risks of flashing! The ultimate tuner for your S55 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between with the push of a button on your steering wheel or phone. 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
- Map switching in dash
- Electronic wastegate control
- Ethanol fuel support
- Built-in advanced CANbus based diagnostic tools
- Completely removable with no splicing or cutting of factory wires
Compatibility:
- Compatible with the factory flash map, competition package flash map, all off-the-shelf flash maps, custom tuned flash maps, or any flash map you choose to load!
- Free back end flash maps designed to optimize performance for specific builds and fuels, saving you hundreds of dollars and many hours of time on custom flash tuning.
For those running aftermarket turbocharger systems with aftermarket Tial wastegate(s), a special version of the S55 JB4 is available. Please email us for manual invoicing of the JB4_S55_TIAL version.
Wireless Connectivity:
- Connect the 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 JB4 performance maps, and update JB4 firmware as new features and maps are released.
- A separate JB4 Mobile app purchase is also required.
JB4 Features & Benefits:
- Gains up to 80whp/100tq on pump gas and up to 120whp/140wtq on higher octane or E85 mixtures
- Improves 0-60 times and 1/4 mile times
- Preloaded with custom JB4 BMW tuning software and up to 8 maps for various fuel and modification levels
- Ethanol (E85) compatible tuning maps
- Able to read/delete fault codes
- View and record up to 40 gauges/engine parameters in real-time with the JB4 app
- Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
- Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
- Offers more performance, functionality, and safety than your average performance chip
- Quick Plug & Play Installation
- CANbus OBDII integration offering unrivaled tuning features and performance
- Improved performance over non-integrated chip tunes
- Runs as smoothly as stock; this is how your vehicle should have come from the factory
- Compatible with all driving modes
- Fuel economy unchanged during normal driving
- 91 octane fuel or better required for performance gains
- Not VIN locked and can be removed without a trace and resold down the road
- Includes the rugged JB4 billet aluminum enclosure for protection
- Made in the USA
- Free USA Shipping
- 5-year extended warranty
Vehicle Fitment:
BMW M2:
- 2018-2022 S55 BMW F87 M2 Competition (S55 engine only)
- Click here for N55 powered M2
BMW M3:
- 2015-2020 S55 BMW F80 M3
BMW M4:
- 2015-2020 S55 BMW F82 F83 M4, M4 GTS, M4 CS
