BMW B46, B48 JB4 Tuner - Burger Tuning (Gen1 & Gen2)

Power gains of up to 100HP on a stock vehicle without the risks of flashing!

The JB4 is the most advanced and highly featured tuning system available for your B46, and B48 powered BMW. Power gains are up to 40hp to the wheels (55hp crank) for a B48, gains with bolt-on parts, higher octane, E85 mixtures, and larger turbos are even higher.

No ECU flash needed and compatible with locked 🔒 ECUs

The JB4 features a simple plug & 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 JB4 mobile phone adapter. The JB4 automatically detects between the B38, B46, B48 models at boot up making installation and setup a snap.

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 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 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
• Designed and assembled in the USA
• Free USA Shipping
• 5-year warranty

2022+ BMW GEN3 B48 JB4 Tuner - 228i (F44), 740i (G70), X1, X5, X7

JB4 Tuner for B48 2020-Present Toyota Supra Mk5 (A90/A91)

Note: If your BMW has a B38/B46/B48 engine and you don't see your exact model on the list below or the links mentioned upper, please Message Us.

BMW 1 Series
• 2019-2024 F40 F40 M135i
• 2020+ F40 B48 BMW 128ti
• 2019-2019 F40 B38 BMW 118i
• 2016-2019 F20/F21 B48 BMW 120i, 125i
• 2015-2019 F20/F21 B38 BMW 116i, 118i

BMW 2 Series
• 2022+ G42 B48 BMW 220i, 230i
• 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+ F44 B48 BMW M235i Gran Coupé including xDrive

BMW 3 Series
• 2019+ G20 G21 B46 B48 BMW 318i, 320i, 320Li, 320e, 330i, 330e, 320Li 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 B48 BMW 420i, 430i 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
• 2017-2023 G30 B46 BMW B48 530i 530e including xDrive
• 2021-2023 G30 BMW 545e

BMW 6 Series
• 2018+ G32 G33 B48 BMW 630i including xDrive

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

BMW X Series
• 2016+ F48 B46 B48 BMW X1 28i including xDrive
• 2018+ F47 B46 B48 BMW X2 28i including xDrive
• 2018+ G01 B48 BMW X3 2.0i, X3 3.0i including xDrive
• 2019+ G02 B48 BMW X4 2.0i, X4 3.0i including xDrive
• 2019+ G05 B48 BMW X5 30i including xDrive

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

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

2018 BMW 330i with JB4, intake, exhaust

2017 BMW 230i with B48 Engine, JB4

 

VIDEOS

BMW B38/B46/B48/B58 JB4 Install Videos

 

 

Handling

Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.

For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.

Expedited shipping applies only once the item is ready to ship.

Return

You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.

To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.

You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders

Non-returnable items:

• Burger Motorsports (BMS) products
• Used items
  
• Air Intakes
• Hazardous materials, flammable liquids, or gases
• Discounted items and gift cards other than "PALENON PERFORMANCE" brand 

Exchanges

Return the item and place a new order once approved.

Refunds

Approved refunds are issued to the original payment method. A restocking fee is 20% will be applied. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.

Cancellations

Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom, specialized items or pre-order items canceled within their lead time are also subject to this fee. Will also incur a 10% restocking fee.

Damaged or incorrect items

Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.

Disputes / Chargebacks

Our legal team is fully prepared to take stringent action against you for filing a baseless claim and initiating a fraudulent chargeback. This will lead to civil or criminal proceedings, which would require you to engage with our attorneys in our jurisdiction.

It is crucial to understand that filing a false chargeback is a serious offense, punishable by substantial fines or imprisonment. Potential penalties for fraudulent chargebacks can include one to three years in prison and fines ranging from $1,000 to $10,000. We treat all chargebacks with the utmost seriousness, regardless of the amount, as this is classified as a felony.

We will compose all necessary information to send your account to a collections agency and request that you be served once our lawyers organize the evidence and file a case against you.