Description:

JB4 plug in tuning for Mini Cooper with B38, B48, or B46 engine. That means most 3rd generation Mini Cooper 2014+. See below for details. The tune adds 40+ horsepower to your stock Mini with simple plug and play. Used for a year and plugs are all in good condition. 

From https://burgertuning.com/products/mini-b38-b48-jb4 
"The JB4 is the most advanced and highly featured tuning system available for your B38/B46/B48 MINI. Power gains are up to 40hp to the wheels (55hp crank) for a B48, gains with bolt-on parts, higher octane, E85 mixtures, and larger turbos are even higher. 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. "

JB4 Features & Benefits

• Power gains of up to 40hp to the wheels on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom JB4 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 different 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
• The JB4 offers a lot 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


MINI B38/B46/B48
• 2014+ F57 Cooper S 
• 2015+ F57 Cooper JCW
• 2014+ F55/F56 Cooper S (2dr & 4dr Hardtop)
• 2015+ F55/F56 JCW (2dr & 4dr Hardtop)
• 2018+ F55/F56 MINI One

• 2017+ F60 Countryman S 
• 2017+ F60 Countryman S ALL4
• 2018+ F60 Countryman JCW ALL4

• 2016+ F54 Clubman S
• 2017+ F54 Clubman S ALL4
• 2017+ F54 Clubman JCW ALL4