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  See more parts for BMW 340i
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Burger Motorsports JB4 ECU Tuner BMW GEN1 & GEN2 B58 2016-2024 - BMS-JB4-BMW-GEN1-GEN2-B58
Burger Motorsports JB4 ECU Tuner BMW GEN1 & GEN2 B58 2016-2024 - BMS-JB4-BMW-GEN1-GEN2-B58 - Image 4 Burger Motorsports JB4 ECU Tuner BMW GEN1 & GEN2 B58 2016-2024 - BMS-JB4-BMW-GEN1-GEN2-B58 - Image 2 Burger Motorsports JB4 ECU Tuner BMW GEN1 & GEN2 B58 2016-2024 - BMS-JB4-BMW-GEN1-GEN2-B58 - Image 3 Burger Motorsports JB4 ECU Tuner BMW GEN1 & GEN2 B58 2016-2024 - BMS-JB4-BMW-GEN1-GEN2-B58 - Image 4

Power gains of up to 120WHP and 120WTQ on a stock vehicle without the risks of flashing!
The JB4 is the most advanced and highly featured tuning system available for your B58 powered BMW. Power gains are up to 120hp to the wheels (140hp crank) on a completely stock B58 engine on pump gas, 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 it 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 changing maps, logging, customization, and loading new features as we add them, we suggest adding one of our Bluetooth phone adapters!

Optional fuel pressure connection for Gen2 B58: Allows the JB4 to directly control fuel pressure and fuel trims, useful for those running E85 mixtures.



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


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.

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


Vehicle Fitment (GEN1 & GEN2 B58)
Note: If your BMW has a GEN1 OR GEN2 B58 engine and you don't see your exact model on the list below please email us. For the newest B58TU2 GEN3 motor refer to this product page.

BMW 1 Series
  • BMW M140i F20 F21 GEN1 B58 2016-2019
BMW 2 Series
  • BMW M240i including xDrive G42 GEN2 B58 2022+
  • BMW M240i including xDrive F22 F23 GEN1 B58 2016-2021
BMW 3 Series
  • BMW M340i including xDrive G20 G21 GEN2 B58 2020-2024
  • BMW 340i including xDrive F30 GEN1 B58 2016-2018
BMW 4 Series
  • BMW M440i including Gran Coupe and xDrive G22 G23 G26 GEN2 B58 2021-2024
  • BMW 440i including Gran Coupe and xDrive F32 F33 F36 GEN1 B58 2016-2020
BMW 5 Series
  • BMW 540i including xDrive G30 G31 GEN2 B58 2017-2023
BMW 6 Series
  • BMW 640i including xDrive G32 G33 GEN2 B58 2018-2023
BMW 7 Series
  • BMW 740i including xDrive G11 G12 B58 2016-2022
BMW 8 Series
  • BMW 840i including Gran Coupe and xDrive G15 G14 G16 GEN1 & GEN2 B58 2018+
BMW X Series
  • BMW X3 M40i including xDrive G01 B48 B58 BMW X3 2.0i, X3 3.0i 2018-2024
  • BMW X4 M40i including xDrive G02 B48 B58 2019-2024
  • BMW X5 40i including xDrive G05 B58 2019-2022
  • BMW X6 40i xDrive G06 B58 2020-2023
  • BMW X7 40i including xDrive G07 B58 2019-2022
BMW Z4
  • BMW Z4 M40 G29 B58
Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2016-2021
 BMW 340i
2020-2023
 BMW 440i
2017-2024
 BMW 540i
2019
 BMW 640i
2015-2019
 BMW 740i
2020-2025
 BMW 840i
2017-2018
 BMW M140i
2017-2018, 2020-2025
 BMW M240i
2020-2025
 BMW M340i
2020-2025
 BMW M440i
2018-2024
 BMW X3
2019-2025
 BMW X4
2020-2025
 BMW X5
2019-2025
 BMW X6
2019-2025
 BMW X7

Burger Motorsports Logo

What is Burger Motorsports?

Based in Simi Valley, California, Burger Motorsports is the manufacturer behind the world-renowned JB4 performance tuner. The company has been pioneering performance tuning, custom exhaust tips, intakes, and other mods for street-inspired race cars since 2007. Its product lineup covers several vehicles including Audi, BMW, Volkswagen, Infiniti, Kia, Porsche, Mercedes-Benz, Alfa Romeo, and more! Whether you are looking for a plug-and-play tuning solutions or simply switch up the look of your car’s exhaust, Burger Motorsports has what you need.

Burger Motorsports can make any car track-ready and track-competitive. The brand is internationally recognized for taking turbo BMWs to the next level with its specially designed tuners for the N55 turbo. Its Stage 1 tuners can automatically determine whether your BMW has an N20, N55, or S55 turbocharged engine.

What Does Burger Motorsports Offer?

Apart from tuners, Burger Motorsports also designs and manufactures air intakes, catch cans, and exhaust tips. Its N55 air intake has been proven to outperform all other options on the dyno with gains of up to 10 horsepower to the wheels. Burger’s vehicle-specific intakes are super simple to install and yield impressive power gains due to their high-flow ducting and performance filters. 

BMS’ oil catch cans are designed to counteract the common oil control problems that several turbo motors suffer. Using 100 percent CNC machining and zero weldings for a precise fit, Burger’s catch cans are guaranteed to last the lifetime of your car. They are also really simple to install thanks to their removable bottom and built-in plug that allows for easier draining during oil changes.

Burger Motorsports also features a wide array of custom exhaust tips in different colors that range from heat-treated blue to matte black. These tips will subtly transform the look of your car’s rear while giving it a more aggressive appearance. BMS exhaust tips all utilize a pressure-based clip similar to the OEM ones for an easy installation and removal process that does not require any unappealing clamps or screws. 

Experience JB4 With Burger Motorsports

As aforementioned, Burger Motorsports is best known for its lineup of plug-and-play JB4 tuners. These tuners install between your car’s sensor and DME/ECU in order to heighten the performance and tuning ability of the turbocharged engine. 

JB4 tuners are unique in that they include CANbus, fuel & spark control, BlueTooth to your smartphone, and include a variety of advanced features that are not possible with any other system. Furthermore, BMS regularly releases free mapping and firmware updates that add more features and performance. The JB4 system is not VIN locked to a specific vehicle and can, therefore, be removed quickly and swapped in other cars without issue.

Upgrade with Burger Motorsports Today

While the JB4 if often imitated, it remains the gold standard when it comes to plug-and-play turbocharged tuning. If you are looking and ready to upgrade your car’s performance, then look no further than BMS.

Vivid Racing carries a wide array of BMS products, which includes air filters, cold air intakes, ECU flashing, intercooler pipes, strut bars, lug nuts, wheel spacers, and complete tuning box kits. If you have any questions regarding the products above, please call Vivid Racing’s specialized parts team at (480) 966-3040. 

Seller warrants that BMS Performance Tuners (JB+, Stage1, JB4) will be free from manufacturing defects for five years after delivery, and all other BMS labeled products will be free from manufacturing defects for one year after delivery. Purchaser's exclusive Remedy for any breach of the forgoing warranty is, at Seller's sole discretion, either: (i) repair or replacement of the non-conforming Product with a conforming Product or (ii) a refund or store credit in the amount paid by Purchaser for such non-conforming Product. Warranty applies to the original purchaser only and is non-transferable. Normal wear and tear, misuse, and abuse is excluded, including any failure to use the product as specified in these terms. Proof of purchase from BMS or an authorized reseller required. Purchaser is responsible for all shipping charges.

SELLER HEREBY EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS WHATSOEVER, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ARISING FROM A COURSE OF DEALING OR USAGE OF TRADE AND ANY WARRANTY OF PATENT OWNERSHIP OR OF NON-INFRINGEMENT OF ANY PROPRIETARY RIGHT. IN NO EVENT SHALL THE SELLER BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, AND IN NO EVENT SHALL SELLER'S CUMULATIVE LIABILITY TO PURCHASER FOR DAMAGES RESULTING FROM OR RELATED TO ANY CLAIMS, DEMANDS, ACTIONS, CAUSES OF ACTION, DAMAGES, SETOFFS, LIENS, ATTACHMENTS, DEBTS, EXPENSES, JUDGMENTS OR OTHER LIABILITIES OF WHATSOEVER KIND OR NATURE, INCLUDING REASONABLE ATTORNEY'S FEES AND COSTS (COLLECTIVELY "CLAIMS") , REGARDLESS OF THE FORM OF THE ACTION, EXCEED THE AMOUNT OF MONEY PAID BY PURCHASER TO SELLER FOR A PRODUCT.

SELLER SHALL NOT BE LIABLE FOR AND PURCHASER AGREES TO INDEMNIFY AND TO HOLD SELLER, ITS OFFICERS, DIRECTORS, EMPLOYEES, AGENTS, AFFILIATES, SUBSIDIARIES, PARENT COMPANY, SUCCESSORS, AND ASSIGNS HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, ARISING OUT OF OR RELATED TO (a) PURCHASER'S USE OF PRODUCTS (b) ANY ACT OR OMISSION OF PURCHASER (c) PURCHASER'S WILLFUL MISCONDUCT OR (d) PURCHASER'S FAILURE TO COMPLY WITH ANY LAW, RULE OR REGULATION.

WITHOUT LIMITATION TO THE FORGOING: (I) PURCHASER EXPRESSLY ACKNOWLEDGES THAT USE OF THE PRODUCT MAY VOID ANY OR ALL WARRANTIES APPLICABLE TO ANY VEHICLE IN WHICH A PRODUCT IS INSTALLED AND PURCHASER AGREES TO RELEASE, INDEMNIFY AND TO HOLD SELLER HARMLESS FROM ANY CLAIMS DIRECTLY OR INDIRECTLY RELATED TO OR ARISING OUT OF ANY VOIDED WARRANTIES RELATED TO OUR ARISING OUT OF USE OF A PRODUCT; (II) PURCHASER EXPRESSLY ACKNOWLEDGES THAT PRODUCTS MAY CAUSE DAMAGE TO ANY VEHICLE IN WHICH SUCH PRODUCTS ARE INSTALLED AND PURCHASER AGREES TO RELEASE, INDEMNIFY AND TO HOLD SELLER HARMLESS FROM ANY CLAIMS DIRECTLY OR INDIRECTLY RELATED TO OR ARISING OUT OF ANY DAMAGE TO A VEHICLE ALLEGEDLY CAUSED BY A PRODUCT; AND, (III) PURCHASER EXPRESSLY ACKNOWLEDGES AND HEREBY AGREES THAT PURCHASER IS FAMILIAR WITH AND AGREES TO COMPLY WITH ANY LAWS, RULES OR REGULATIONS RELATED TO PRODUCTS ("APPLICABLE LAWS") AND PURCHASER AGREES TO RELEASE, INDEMNIFY AND TO HOLD SELLER HARMLESS FROM ANY CLAIMS RELATED TO OR ARISING OUT OF ANY ALLEGATION THAT PURCHASER FAILED TO COMPLY WITH APPLICABLE LAWS.

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