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BMS BMW B38 B46 B48 B58 JB+ - 3 Wire Version (Inc. M140i, M240i, 340i, 440i & 540i)

Regular price $223.00 USD
Regular price $239.00 USD Sale price $223.00 USD
Price match

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

This is the JB+ for BMWs with the B38, B48, and B58. This is the 3 wire version of the JB+. Does not fit the X1, X2 or MINI models.

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, up to 40 wheel horsepower and 50 wheel torque on the B58 motor and up to 35 wheel horsepower and 35 wheel torque on the B38 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.

If you have a Mini or BMW X1, X2, X3, X3 20i, X4 20i, M135ix, M235ix or FWD 118i with the B38/B48 engine with 4 wire sensor, you will need the BMS BMW Mini B38 B46 B48 JB+ (M135ix, M235i(x) X1, X2, One, Cooper, Clubman & Countryman)

BMW 1 Series
• 2015+ F20/F21 B58 M140i
• 2016+ F20/F21 B48 120i, 125i
• 2015+ F20/F21 B38 116i

BMW 2 Series
• 2017+ F22 F23 B58 M240i/iX
• 2017+ F22 F23 B48 230i/iX
• 2017+ F22 F23 B48 225i/iX 
• 2017+ F22 F23 B46 220i/iX
• 2015+ F45/F46 B38 216i AT/GT
• 2015+ F22/F23 B38 218i
• 2014+ F45/F46 B38 218i AT/GT

BMW 3 Series

• 2020+ G20 B58 M340i/M340iX
• 2020+ G20 B48 320i/320ix
• 2020+ G20 B48 330i/330iX
• 2016+ F30 B58 340i/340iX
• 2016+ F30 B48 330i/330iX/330e
• 2016+ F30 B48 325i/325iX
• 2016+ F30 B46 320i/320iX
• 2016+ F30 B46 318i/318iX 

BMW 4 Series
• 2016+ F32 F33 F36 B58 440i/440iX
• 2016+ F32 F33 F36 B48 430i/430iX 
• 2016+ F32 F33 F36 B48 425i/425iX 
• 2016+ F32 F33 F36 B46 420i/420iX
• 2016+ F32 F33 F36 B38 418i

BMW 5 Series
• 2017+ G30 B58 540i/540iX
• 2017+ G30 B46/B48 530i/530iX/530e

BMW 6 Series
• 2017+ G32 B58 640i/640iX

BMW 7 Series
2016+ G11/G12 B58 740i/
2016+ G11/G12 730i/730iX

BMW 8 Series
2020+ G15/G14 B58 840i/8

BMW X Series

• 2018+ G01 B58 X3 3.0i/M40i
• 2019+ G02 B58 X4 3.0i/M40i
• 2019+ G05 B58 X5 40i
• 2019+ G07 B58 X7 40i

• 2019+ BMW G29 B58 Z4 M40i
• 2019+ BMW G29 B46/B48 Z4 30i and Z4 20i

• 2020 GR Toyota Supra 3.0L 6 cyl. (B58)

Please Note: Only fits vehicles with 3 wires, please double check your stock sensor prior to ordering.

Will work on most BMW with the B48 and B58 engine even if it is not on the above list, excluding the X1 and X2. If you are unsure, please drop us an email and we would be delighted to double check for you! 


To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 


JB+ Dyno results (Click to enlarge)

2016 BMW 340i, 91 octane, stock vs. JB Plus

BMS BMW B58/B46/B48 JB+ (M140i, 220i, M240i, 320i, 330i, 340i, 420i, 440i & X1 )


How to install Burger Motorsports BMW B46 B48 B58 Jb+ Quick Install tuner

BMS BMW F Chassis B46/B48/B58 JB4 (M140i, 220i, M240i, 320i, 330i, 340i, 420i, 440i & X1 ) Installation Guide - ML Performance UK




Photos & Videos