BMW B58 JB4 Tuner (2016-2024 Gen1 & Gen2) - Burger Tuning

Power gains of up to 120whp and 120wtq. on a stock vehicle without the risks of flashing!

The JB4 is the most advanced and feature-rich tuning system available for BMW's B58 engines, offering significant power gains, seamless integration, and unparalleled ease of use. With its plug-and-play design and innovative features, the JB4 transforms your driving experience without requiring additional modifications.

For B58 Engines:

• Power Gains: Up to 120hp to the wheels (140hp crank) on a completely stock engine with pump gas. Gains are even higher with bolt-ons, E85 fuel mixtures, or larger turbos. 
• Key Features:
  • Simple plug-and-play installation for quick setup and removal.
  • In-dash map switching: Seamlessly toggle between factory and performance maps.
  • Optional in-dash gauge displays for real-time metrics like boost.
  • Boost limiting by gear to enhance traction in lower gears.
  • Support for progressive water/methanol injection.
  • Built-in data logging and code reading capabilities.
  • Optional direct EWG control to prevent throttle closure with exhaust upgrades.
  • Exhaust flapper control for sound customization.
• Optional: For Extra Ordinary Performance with JB4 We recommend Our B58 Downpipe

Wirelessly Connect to your JB4: Grab one of our smartphone connection options to wirelessly connect the JB4 BMW tuner to your Bluetooth 4.0 compatible iOS or Android device. 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.

JB4 Mobile by DMAC was released in 2014 and has become the gold standard for phone-to-tuner integration with its unique gauge display options/themes and advanced security systems. The JB4 Mobile app is purchased separately for $29 and requires the JB4 Mobile adapter.

JB4PRO by Burger Motorsports is our brand-new in-house adapter designed from the ground up for ease of use and reliability. Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look. The JB4PRO Free app features an intuitive easy-to-use interface, help buttons, and advanced log analysis tools that can estimate the performance of your car and help identify any tuning concerns. More information on the differences between the app options is available here.

Unmatched Versatility: Works as a first and only modification or alongside other upgrades.

Performance on Demand: Instant power gains and smooth, fast acceleration.

Ease of Use: Requires no setup or customization, but advanced users can access additional features with the optional BMS DATA cable or REV3 mobile adapter for data logging and updates.

JB4 Tuner 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+ 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.

JB4 Power Gains, Features, & Benefits

Power gains of up to 120hp 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
• Designed and assembled in the USA
• Free USA Shipping
• 5-year warranty

2022+ BMW GEN3 B58 JB4 Tuner - 228i (F44), 740i (G70), X1, X5, X7

JB4 Tuner for B58 2020-Present Toyota Supra Mk5 (A90/A91)

Note: If your BMW has a B58 engine and you don't see your exact model on the list below or the links mentioned upper, please Message Us.

BMW 1 Series

• 2016-2019 F20 F21 GEN1 B58 BMW M140i

BMW 2 Series

• 2022+ G42 GEN2 B58 BMW M240i including xDrive
  
• 2016-2021 F22 F23 GEN1 B58 BMW M240i including xDrive

BMW 3 Series

• 2020-2024 G20 G21 GEN2 B58 BMW M340i including xDrive
  
• 2015-2019 F30 GEN1 B58 BMW 340i including xDrive

BMW 4 Series

• 2021-2024 G22 G23 G26 GEN2 B58 BMW M440i including Gran Coupe and xDrive
  
• 2016-2020 F32 F33 F36 GEN1 B58 BMW 440i including Gran Coupe and xDrive

BMW 5 Series

• 2017-2023 G30 G31 GEN2 B58 BMW 540i including xDrive

BMW 6 Series

• 2018-2023 G32 G33 GEN2 B58 BMW 640i including xDrive

BMW 7 Series

• 2016-2022 G11 G12 B58 BMW 740i including xDrive

BMW 8 Series

• 2018+ G15 G14 G16 GEN1 & GEN2 B58 BMW 840i including Gran Coupe and xDrive

BMW X Series

• 2018-2024 G01 B58 BMW X3 2.0i, X3 3.0i, X3 M40i including xDrive
  
• 2019-2024 G02 B58 BMW X4 2.0i, X4 3.0i, X4 M40i including xDrive
  
• 2019-2022 G05 B58 BMW X5 40i including xDrive
  
• 2020-2023 G06 B58 X6 40i xDrive
  
• 2019-2022 G07 B58 BMW X7 40i including xDrive

BMW Z4

• 2019+ G29 B58 BMW Z4 M40i

What is a JB4? 

The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and the DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it's not the only tuning system that operates this way the JB4 separates itself from the competition with much more advanced connection points and processing including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade.

California Customers -- Download the CARB Version Installation Guide

Stock vs. JB4 DYNO RESULTS

2020 BMW B58 M340i JB4 + BMS B58 Competition Intake and E30

2016 BMW 340xi B58, JB4, no other mods, 93 Octane vs E30

2020 B58 Powered BMW Z4 Dyno - 490whp with JB4 Map 5 and E40 mixture

2017 BMW 230i with B48 Engine, JB4

VIDEOS

No M? No problem! JB4 Tuned 240i beats G80 M3.

CAN FLAP DEMO

BMW B58 JB4 Install Videos

 

 

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need proof of purchase.

To start a return, you can contact us at sales@palenonperformance.com. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at sales@palenonperformance.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, Burger Motorsports does not allow returns, custom products (such as special orders or personalized items), JB4 Tuners and air filters can not be returned. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on discounted items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. Certain circumstances will require a restocking fee of up to 25% at the discretion of Palenon Performance. (Examples of these circumstances include but are not limited to multiple failed delivery attempts, modified or damaged products and packaging, etc.) If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Handling

If the item is shipping from us direct, you will receive a tracking number within 1 business day. Most orders fulfilled at our warehouse will ship the same business day if ordered by 12pm MST. If the item is being drop shipped from the manufacturer, we cannot guarantee a tracking number within 1 business day. If an item is being drop shipped, we cannot guarantee the 24 hour (1 business day) processing time. A purchase of expedited shipping at checkout means that once item is ready to ship, it will ship using the upgraded shipping method. Some manufacturers require 3-5 days to process orders. Purchasing expedited shipping may speed up the processing time of your order, but we cannot make any guarantees in relation to faster processing time on the manufacturer’s end.

Cancellations

If you used a credit/debit card or PayPal to place an order and decide to cancel or return your order for any reason, a 5% merchant fee will be passed along to you (8% for Shop Pay installments). Some manufacturers can take up to 7 business days to ship out orders. If an item is out of stock we will reach out to you within 48 hours to confirm you would like to proceed with a preorder. If the item is listed as custom-built/ built to order within the description, or if the ETA or average lead time is visible on the product page at the time of ordering and you are cancelling inside of that ETA/lead time you will be charged the merchant fee. If the cancellation is outside of the time frame the merchant fee will not be charged to you for canceling.