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B38/B46/B48/B58 JB4
b48 b46 b38

Applications:

BMW 1 Series
• 2015+ B58 M140
• 2016+ B48 120i

BMW 2 Series
• 2017+ F22 F23 B58 240i/iX
• 2017+ F22 F23 B48 230i/iX
• 2017+ F22 F23 B48 225i/iX
• 2017+ F22 F23 B46 220i/iX

BMW 3 Series
• 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

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

BMW X Series
• 2016+ X1 B46/B48
• 2018+ B46/B48 X2
• 2018+ B58 X3 M40i

Ready to take it to the next level?

The JB4 is the most advanced and highly featured tuning system available for your B58 and B48 vehicle. Power gains are up to 60hp to
the wheels (80hp crank) on a completely stock car on pump gas for a B58 and up to 40hp to the wheels (55hp crank) for a B48, gains with bolt on parts, higher octane, and larger turbos are even higher.

The JB4 features a simple plug and play installation harness for easy installation & removal and includes many features not found with 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, progressive water/methanol support, built in data logging, built in code reading, optional direct EWG control to prevent throttle closure with exhaust modifications, exhaust flapper control, and much more. Other more expensive tuners may claim to equal the JB4's technology but upon closer examination lack most if not all of the JB4's features.

Remember the JB4 does not require any additional modifications or previous stages. Simply install the JB4 as your first and only
modification and enjoy an entirely new fast and smooth racing experience. The JB4 also does not require any user setup or
customization but for those who are interested in logging, adding new features as we post them, etc, we suggest the BMS DATA cable or REV3 mobile phone adapter. The JB4 automatically detects between the B46, B48, and B58 models at boot up making installation and setup a snap.

Note for 2018+ 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.

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.

2018 kia sringer performacne tuner chip eus flash jb4
 
JB4 Features and Benefits

• Power gains of up to 50hp to the wheels on a stock vehicle
• Quick Plug & Play Installation
• CANbus integration offering unrivaled tuning features and performance
• Runs as smoothly as stock, this is how your BMW should have come from the factory
• Compatible with all driving modes
• Fuel economy unchanged during normal driving
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• Not VIN locked, can be removed without a trace and resold down the road
• Made in the USA
• Free USA Shipping
• 5 year warranty
 
CAN FLAP DEMO B38/B46/B48/B58 JB4 Install Video
   
2017 BMW 230i with B48 Engine, JB4 2016 BMW 340i B58, JB4, 93 Octane, Map3
   
2016 BMW 340i B58, JB4, Pure Stage 1 Turbo, 93 Octane, WMI 2016 BMW 340i B58, JB4, 93 Octane, WMI
   
B38/B46/B48/B58 JB4

$529.00 + Free Shipping in USA

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Optional JB4 Wireless Mobile Connect Kit or BMS Data Cable
Wirelessly 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 we release free newer versions with updates, more powerful maps, and new features under development.

Starting at $35.00

Worldwide Shipping Available.
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JB4 Wireless Mobile Connect Kit
JB4 N54 bmw performance parts tuners chips
BMS DATA CABLE
B46/B48/B58 JB4 CARB Sticker
Required for California use, valid only with Burger Motorsports B46/B48/B58 JB4 tuner above

$2.50

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Estimate Shipping by adding to cart and entering in your ZIP code or country.

By purchasing this item you agree to the Terms and Conditions.

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