BMS JB4, engine tuning device BMW B38 / B48 / B58

Burger Motorsports BMW B58 / B48 / B38 JB4 engine tuner device

The JB4 stands out as the pinnacle of tuning systems tailored for B58 and B48 vehicles, boasting unparalleled functionality. This device alters the signaling between your engine control unit and the engine, making it possible for you to customize the ECU maps professionally without compromising the stock ECU or software. It delivers substantial power enhancements, offering up to 80hp to the wheels (equivalent to 100hp at the crank) for a B58 and up to 40hp to the wheels (equivalent to 55hp at the crank) for a B48, even on stock configurations. These gains can be further amplified with aftermarket parts, premium fuel blends, E85 mixes, and turbocharger upgrades.

Installation is effortless thanks to the plug & play harness, allowing for seamless integration and removal. Setting it apart from other tuning solutions, the JB4 offers a host of exclusive features. These include on-the-fly switching between factory and performance maps via the in-dash interface, optional boost gauge displays, gear-based boost limiting for enhanced traction, progressive water/methanol support, built-in data logging, code reading functionality, and optional direct EWG control to prevent throttle closure with modified exhaust systems, among others.

Unlike pricier alternatives that claim similar technological prowess, the JB4 encompasses a comprehensive suite of features that competitors often lack.

It’s important to note that the JB4 requires no additional modifications or previous stages. Simply installing the JB4 transforms your driving experience, providing newfound speed and refinement. While user setup or customization isn’t necessary, those interested in logging data or accessing new features can opt for the BMS DATA cable or REV3 mobile phone adapter. The JB4 seamlessly detects between B46, B48, and B58 models during boot-up, streamlining installation and setup procedures.

• Power gains of up to 100hp to the wheels on a stock vehicle
• 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 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
• Exhaust flap operation can be controlled in most JB4 applications
• 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
• Includes the rugged JB4 billet aluminum enclosure for protection
• Made in the USA
• 5-year warranty

Read more from Burger Motorsports website where you also find the latest links to firmware upgrades and other questions.

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JB4 Map Guide:

Map0: Stock tuning, fully disable JB4
Map1: 3psi over stock added (91 octane)
Map2: 4psi over stock added (91-93 octane)
Map3: 6psi over stock added (93+ octane)
Map4: Absolute target map with peak target of 20psi (93+ and/or 30% E85, EWG connector suggested)
Map5: Absolute target map with peak target of 22psi (30% E85+ fuel, EWG connector suggested)
Map6: Custom tuning map — see details on JB4tech.com B58 JB4 page
Map7: Progressive WMI map with tuning a function of meth flow and user-defined boost additive.
Map8: VALET / Low Boost Map

Note for 2018-present G chassis vehicles with the digital dash layout we have not yet added in the JB4 commands to allow in-dash control but will provide those via a free firmware update once developed. Until then a JB4 mobile adapter or BMS data cable is required for any map and setting changes.

This B58 JB4 model is compatible with all GEN1 and GEN2 B58 motors. For the newest B58TU2 GEN3 motor we have another, separate kit available.

JB4_B58 is CARB Approved Under Executive Order (EO) No.D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1 applications.

Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit (INCLUDED) or to your Windows laptop with the BMS data cable (optional). Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. A separate JB4 Mobile app purchase is also required.

 

Fits for example these models:

BMW 1 Series
2020-Present F40 B48 BMW 128ti
2019-Present F40 B48 BMW M135i
2019-2019 F40 B38 BMW 118i
2015-2019 F20/F21 B58 BMW M140i
2016-2019 F20/F21 B48 BMW 120i, 125i
2015-2019 F20/F21 B38 BMW 116i, 118i

BMW 2 Series
2022-Present G42 B58 BMW M240i including xDrive
2022-Present G42 B48 BMW 220i, 230i
2016-2021 F22 F23 B58 BMW M240i including xDrive
2017-2021 F22 F23 B48 BMW 230i including xDrive
2017-2021 F22 F23 B48 BMW 225i including xDrive
2017-2021 F22 F23 B46 BMW 220i including xDrive
2015-2021 F22 F23 B38 BMW 218i
2015-2021 F45 F46 B38 BMW 216i Active tourer and GT
2014-2020 F45 F46 B38 BMW 218i, 220i Active tourer and GT
2019-Present F44 B48 BMW M235i Gran Coupé including xDrive

BMW 3 Series
2020-Present G20 G21 B58 BMW M340i including xDrive
2019-Present G20 G21 B46 B48 BMW 318i, 320i, 320Li, 320e, 330i, 330e, 320Li including xDrive
2016-2018 F30 B58 BMW 340i including xDrive
2016-2018 F30 B48 BMW 330i, 330e including xDrive
2016-2018 F30 B48 BMW 325i including xDrive
2016-2018 F30 B46 BMW 320i including xDrive
2016-2018 F30 B46 BMW 318i including xDrive

BMW 4 Series
2021-Present G22 G23 G26 B58 BMW M440i including Gran Coupe and xDrive
2021-Present G22 G23 G26 B48 BMW 420i, 430i including Gran Coupe and xDrive
2016-2020 F32 F33 F36 B58 BMW 440i including Gran Coupe and xDrive
2016-2020 F32 F33 F36 B48 BMW 430i including Gran Coupe and xDrive
2016-2020 F32 F33 F36 B48 BMW 425i including xDrive
2016-2020 F32 F33 F36 B46 BMW 420i including xDrive
2016-2020 F32 F33 F36 B38 BMW 418i

BMW 5 Series
2017-Present G30 B58 BMW 540i including xDrive
2017-Present G30 B46 BMW B48 530i 530e including xDrive
2021-Present G30 BMW 545e

BMW 6 Series
2018-Present G32 G33 B48 B58 BMW 630i 640i including xDrive

BMW 7 Series
2016-2022 G11 G12 B58 BMW 740i including xDrive
2016-2022 G11 G12 B48 BMW 730i including xDrive

BMW 8 Series
2020-Present G15 G14 G16 B58 BMW 840i including Gran Coupe and xDrive

BMW X Series
2016-2022 F48 B46 B48 BMW X1 28i including xDrive
2018-Present F47 B46 B48 BMW X2 28i including xDrive
2018-Present G01 B48 B58 BMW X3 2.0i, X3 3.0i, X3 M40i including xDrive
2019-Present G02 B48 B58 BMW X4 2.0i, X4 3.0i, X4 M40i including xDrive
2019-2022 G05 B58 BMW X5 40i including xDrive
2021-2022 G05 B48 BMW X5 45e including xDrive
2020-Present G06 B58 X6 40i xDrive
2019-2022 G07 B58 BMW X7 40i including xDrive

BMW Z4
2019-Present G29 B58 BMW Z4 M40i
2019-Present G29 B46 B48 BMW Z4 30i and Z4 20i