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BMS BMW Mini B38 B46 B48 JB+ for BMW X1, X2 & Mini One, Cooper, Clubman & Countryman

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This is available with our stock order (usually ship in 2-3 Weeks from USA)


A true plug and play tune offering safe and adjustable
25-40 Horsepower gains at the wheels! 

Finally our popular and well proven JB+ quick install tuner is available for B48 and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remains managed seamlessly by the DME preserving all factory safety systems.

While the JB4 is the ultimate tuning tool the JB+ is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a minute, and really feel from the drivers seat.

Fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation allowing the same unit to be used for any B48 B58 F series application! Not legal for sale or use within California.

Click Here to Download the Installation Guide



BMW X Series
• 2016+ X1 B46/B48
• 2015+ B38 X1 sDrive18i
• 2018+ F39 B46/B48 X2
• 2017+ F39 B38 X2 sDrive18i

• 2018+ F55/F56 B38 Mini One
• 2014+ F55/F56 B38 Mini Cooper
• 2015+ F54 B38 Mini Clubman
• 2017+ F60 B38 Mini Countryman
• MINI B38/B46/B48


5 Year BMS Repair Warranty


Manufactured by

Burger Motorsports


Part Number


FREE UK Delivery

BMS JB+ System Dyno Result



23cm x 17cm x 5cm


Package Weight


Warranty Information

5 Year BMS Repair Warranty