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Burger Motorsports Piggyback Tuning Modules

You've heard about it before, and now it's available here at Turner Motorsport! The Burger Motorsport JB4 Tuner is one of the most versatile, adaptable modifications you can make to your BMW, and among the simplest to install. A true plug & play solution, the JB4 offers support for everything from stock cars to fully built monsters. Stock cars can expect gains of up to 60 wheel horsepower, while modified cars can expect to see gains of over 100 WHP! With an additional cable, you can connect your smart device or laptop to enjoy datalogging and tuning capabilities. It's all inclusive and fully featured - it's the JB4 from Turner Motorsport. Order yours today!

Burger Motorsports Tuning Products are for off-road racing use only - NOT FOR SALE OR USE IN CALIFORNIA! All customers must sign and return an emissions waiver to purchase Burger Motorsports tuning products.

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Burger Motorsports - Corporate Logo
T#:40004848
Part#: JB4-B48
In Stock
$ 599.00 USD
Free Shipping on orders $49 and up
The JB4 is the most advanced and highly featured tuning system available for your B38, 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. 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 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. A separate JB4 Mobile app purchase is also required. 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 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 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.
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Burger Motorsports - Corporate Logo
T#:21012607
Part#: JBPLUS-B58-3W
Ships in 8 Business Days
$ 239.00 USD
Free Shipping on orders $49 and up
The popular and well-proven JB Plus quick install tuner is available for B46, B48, and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remains managed seamlessly by the DME, preserving all factory safety systems. While the JB4 is the ultimate tuning tool the JB Plus (JB+) is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a minute, and really feel from the driver's seat. The fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation allowing the same unit to be used for any B48 B58 F series application!
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Burger Motorsports JB4 Performance Tuner - BMW Gen3 B48 2.0L & Gen3 B...
For models with the Gen3 B58 (B58N / B58TU2) and Gen3 B48 (B48N / B48P / B48TU2) engines only
Burger Motorsports - Corporate Logo
T#:29101683
Part#: B58GEN3-JB4
Ships on Oct 16, 2026
$ 699.00 USD
Free Shipping on orders $49 and up
$ 699.00 USD
Free Shipping on orders $49 and up
The JB4 is the most advanced and highly featured tuning system available for your B48/B58 GEN3 powered vehicle. Power gains are up to 100whp to the wheels (125hp crank) on a completely stock car on 93 octane, and even higher with ethanol fuel mixed in! This new JB4 BMW tuner is specifically designed for the latest Gen 3 B48/B58 variant and is capable of processing the new ultra-fast SENT digital sensor signals in real time with zero latency. 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-app map switching between factory and various performance maps, boost limiting by gear for improved traction in lower gears, progressive water/methanol support, built-in data logging, built-in code reading, 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 Bluetooth mobile phone adapter.
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Burger Motorsports - Corporate Logo
T#:21012608
Part#: JBPLUS-B48-4W-FW
In Stock
$ 239.00 USD
Free Shipping on orders $49 and up
The popular and well-proven JB Plus quick install tuner is available for B46, B48, and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remains managed seamlessly by the DME, preserving all factory safety systems. While the JB4 is the ultimate tuning tool the JB Plus (JB+) is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a minute, and really feel from the driver's seat. The fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation allowing the same unit to be used for any B48 B58 F series application!
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Burger Motorsports - Corporate Logo
T#:1762259
Part#: JB4N542STEP
Ships in 1 Business Day
$ 35.00 USD
Free Shipping on orders $49 and up

BMW N54 JB4 2 Step / NLS Relay is a powerful add-on for BMW N54 engines that enables your JB4 to “2-step” by cycling power to the ignition coils, allowing for quick boost build-up even when the engine is not under load. Ideal for both manual and automatic transmissions, this relay is perfect for creating dramatic sound effects and for launching with manual transmissions. Additionally, it provides No Lift Shifting (NLS) capability for manual cars, enhancing performance and shifting speed.

  • Enables 2-step functionality for boost control, enhancing launch performance
  • No Lift Shifting (NLS) for seamless gear changes in manual transmissions
  • Compatible with both manual and automatic BMW N54 models
  • Easy installation with updated JB4 firmware (v32_15 for twin turbo or v13_7 for single turbo) - clutch wire no longer required
  • Requires JB4, back-end flash map, and either a BMS data cable or JB4 mobile connect kit
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Burger Motorsports - Corporate Logo
T#:40004847
Part#: JB4-B58-GEN2
In Stock
$ 599.00 USD
Free Shipping on orders $49 and up
$ 599.00 USD
Free Shipping on orders $49 and up
The JB4 is the most advanced and highly featured tuning system available for your B58 vehicle. Power gains are up to 60hp to the wheels (80hp crank) on a completely stock car on pump gas for a B58; 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. 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 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. Separate JB4 Mobile app purchase also required. Note for 2018+ G chassis vehicles with the digital dash layout, Burger Motorsports 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.
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Burger Motorsports - Corporate Logo
T#:38587638
Part#: JB4GEN1GEN2B58
EO#: D-744-4
In Stock
$ 599.00 USD
Free Shipping on orders $49 and up
$ 599.00 USD
Free Shipping on orders $49 and up
The JB4 is a powerful and versatile tuning system designed for BMW vehicles with GEN1 and GEN2 B58 engines. It delivers impressive power gains, adding up to 120 wheel horsepower (approximately 140hp at the crank) on a stock engine with pump gas. Performance can be further enhanced with supporting modifications such as bolt-ons, higher octane fuel, E85 blends, and upgraded turbochargers. ### Key Features: - **Plug-and-Play Installation** – Includes an easy-to-install harness for quick setup and removal with no permanent modifications. - **Multiple Tuning Maps** – Comes preloaded with up to eight custom maps optimized for different fuel types and modification levels, including E85 compatibility. - **Real-Time Data Monitoring** – Allows users to track and log up to 40 engine parameters via the JB4 app for precise tuning and performance adjustments. - **Boost by Gear Control** – Adjust boost levels in first, second, and third gears through the app to optimize traction and acceleration. - **Diagnostic Capabilities** – Reads and clears fault codes, assisting with diagnostics and maintenance. For those seeking even greater performance, Burger Motorsports offers a **475 Wheel Horsepower Package** for Gen2 B58 models, featuring the JB4 tuner and additional upgrades to push output up to 475whp, depending on fuel type. The JB4 is the ultimate tuning solution for BMW B58 owners looking to maximize power, drivability, and customization with advanced features and seamless integration.
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Burger Motorsports - Corporate Logo
T#:40004849
Part#: JB4-B48-CARB
EO#: D-744-4
In Stock
$ 599.00 USD
Free Shipping on orders $49 and up
CARB APPROVAL: Approved Under Executive Order (EO) No. D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, and X1 applications. The JB4 is the most advanced and highly featured tuning system available for your B38, 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. 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 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. A separate JB4 Mobile app purchase is also required. 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 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 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.
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Burger Motorsports - Corporate Logo
T#:637255
Part#: S58JB4F97F98
In Stock
$ 799.00 USD
Free Shipping on orders $49 and up
Simple, plug-and-play installation can yield results of up to 60 wheel horsepower on stock cars - or over 100 horsepower on E85!

Burger Motorsports - Corporate Logo
T#:38128030
Part#: JB4S68WSMPK
Ships on Oct 16, 2026
$ 1,048.00

This product was last offered at the strikethrough price on
05-19-2026

$ 879.00 USD
Free Shipping on orders $49 and up
$ 879.00 USD
Free Shipping on orders $49 and up
JB4 takes your F95/F96 BMW X5M/X6M from factory stock to full race-ready performance, offering unmatched tuning capabilities. Designed for easy installation and complete removability, the JB4 requires no splicing or cutting of factory wires, making it the ideal choice for your S68 engine. The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its 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, 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.
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Burger Motorsports - Corporate Logo
T#:21012609
Part#: JBPLUS-B48-3W
In Stock
$ 238.99 USD
Free Shipping on orders $49 and up
The popular and well-proven JB Plus quick install tuner is available for B46, B48, and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remains managed seamlessly by the DME, preserving all factory safety systems. While the JB4 is the ultimate tuning tool the JB Plus (JB+) is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a minute, and really feel from the driver's seat. The fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation allowing the same unit to be used for any B48 B58 F series application!
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Burger Motorsports - Corporate Logo
T#:23020116
Part#: JB4-F90-M5
Special Order: No Guaranteed ETA
$ 899.00

This product was last offered at the strikethrough price on
05-19-2026

$ 879.00 USD
Free Shipping on orders $49 and up
$ 879.00 USD
Free Shipping on orders $49 and up

Maximize BMW Performance with Burger Motorsports JB4 Module

Elevate your BMW's performance with the Burger Motorsports JB4 module, delivering remarkable power gains of up to 80hp and 100tq to the wheels for stock vehicles. This plug-and-play installation enhances the F90 M5, offering unparalleled performance and pushing its quarter-mile potential deep into the 10s.

Featuring full CANbus integration, the JB4 stands out with advanced tuning features, safety functionalities, and diagnostics, setting it apart from generic tuning devices. Its electronic wastegate control ensures precise boost targeting, making it the ultimate tuning box for your //M.

Key Features:

  • Up to 80hp and 100tq power gains for stock vehicles
  • Quick Plug & Play Installation
  • Full CANbus integration for advanced tuning features
  • Smooth stock-like operation
  • Compatible with all driving modes
  • Unchanged fuel economy during regular driving
  • JB4 Mobile compatibility for smartphone logging and tuning changes
  • Ethanol (E85) compatible tuning maps
  • Read/delete fault codes capability
  • Not VIN locked, easily removable without a trace for resale
  • Made in the USA with a 5-Year Warranty

Note: Intended for off-road racing use only. Not for sale or use in California. Emissions compliance waiver required for purchase.

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Burger Motorsports - Corporate Logo
T#:32781453
Part#: MINIB38/B48J-JB4
Ships on Oct 16, 2026
$ 529.00 USD
Free Shipping on orders $49 and up
Burger Motorsports - Corporate Logo
T#:49543767
Part#: S58JB4PRO
Ships on Oct 16, 2026
$ 899.00 USD
Free Shipping on orders $49 and up
The ultimate tune for your S58-powered G87 M2, G80 M3, or G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user-adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control, ethanol fuel support, and built-in advanced CANbus-based diagnostic tools. Installation is easy and completely removable with no splicing or cutting of factory wires making the JB4 an excellent choice for your S58 engine. This new JB4PRO board includes built-in Bluetooth, fuel pressure control for more advanced tuning with ethanol mixtures, built-in flex fuel/port injection/WMI control using our PNP add-on harness, includes onboard data-logging memory, and includes many additional features to be unlocked in the future via free firmware updates!
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Burger Motorsports - Corporate Logo
T#:41255925
Part#: S58700HP-BLUKT
Back Ordered
$ 2,075.99

This product was last offered at the strikethrough price on
05-23-2026

$ 2,066.00 USD
Free Shipping on orders $49 and up
$ 2,066.00 USD
Free Shipping on orders $49 and up
Unleash 700+ HP with safe, proven JB4 tuning on your locked ECU while maintaining reliability and drivability. This package delivers maximum power, optimized airflow, and real-time performance monitoring—all with easy plug-and-play installation and no permanent modifications.
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Burger Motorsports - Corporate Logo
T#:49613450
Part#: G8XS58CANFFUH
Ships on Oct 16, 2026
$ 479.99

This product was last offered at the strikethrough price on
05-22-2026

$ 479.00 USD
Free Shipping on orders $49 and up
$ 479.00 USD
Free Shipping on orders $49 and up

Burger Motorsports - Corporate Logo
T#:31589335
Part#: JBPLUS-B48B58-SU
Ships on Oct 16, 2026
$ 239.00 USD
Free Shipping on orders $49 and up
Burger Motorsports - Corporate Logo
T#:21012610
Part#: JBPLUS-B48-4W
Ships on Oct 16, 2026
$ 239.00 USD
Free Shipping on orders $49 and up
The popular and well-proven JB Plus quick install tuner is available for B46, B48, and B58 applications! Boost is user adjustable up to 4.5psi over stock providing gains up to 30 wheel horsepower and 40 wheel torque on the B48 motor and up to 40 wheel horsepower and 50 wheel torque on the B58 motor. Timing and fueling remains managed seamlessly by the DME, preserving all factory safety systems. While the JB4 is the ultimate tuning tool the JB Plus (JB+) is a quick and simple way to add a few HP with minimal cost and minimal install effort. Something that anyone can buy, install in under a minute, and really feel from the driver's seat. The fuel economy during normal driving is unchanged. Automatically detects the engine type upon installation allowing the same unit to be used for any B48 B58 F series application!
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Burger Motorsports - Corporate Logo
T#:49613494
Part#: JB4FPUS58
Ships on Oct 16, 2026
$ 175.00 USD
Free Shipping on orders $49 and up
Adds a high fuel pressure connection to the JB4 for S58 platforms, allowing direct control of fuel pressure and fuel trims
Burger Motorsports - Corporate Logo
T#:46890692
Part#: JB4G09XMS68
Ships on Oct 16, 2026
$ 899.00

This product was last offered at the strikethrough price on
05-21-2026

$ 879.00 USD
Free Shipping on orders $49 and up
$ 879.00 USD
Free Shipping on orders $49 and up
JB4 takes your G09 BMW XM / XM Label from factory stock to full race-ready performance, offering unmatched tuning capabilities. Designed for easy installation and complete removability, the JB4 requires no splicing or cutting of factory wires, making it the ideal choice for your S68 engine. The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its 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, 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.
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Burger Motorsports - Corporate Logo
T#:553176
Part#: JB4ANTILAG
Ships in 2 Business Days
$ 50.00 USD
Free Shipping on orders $49 and up
Includes a programmed chip and wiring harness to allow on-the-fly anti-lag. Select a gear, hold down the volume button, floor the car, and once boost has built up release the volume button to instantly take off under full boost. Absolute must-have for rolling races of any transmission type and works well for automatics off the line too. Requires a BMS back end flash map and ethanol fuel is strongly suggested.
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Burger Motorsports - Corporate Logo
T#:38655159
Part#: BMS-JB4-S68-G909
Ships on Oct 16, 2026
$ 979.00 USD
Free Shipping on orders $49 and up
JB4 takes your G90 BMW M5 from factory stock to full race-ready performance, offering unmatched tuning capabilities. Designed for easy installation and complete removability, the JB4 requires no splicing or cutting of factory wires, making it the ideal choice for your S68 engine. The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its 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, 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.
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Burger Motorsports - Corporate Logo
T#:46924971
Part#: JB4S68G0567
Ships on Oct 16, 2026
$ 899.00

This product was last offered at the strikethrough price on
05-19-2026

$ 879.00 USD
Free Shipping on orders $49 and up
$ 879.00 USD
Free Shipping on orders $49 and up
JB4 takes your S68-powered BMW from factory stock to full race-ready performance, offering unmatched tuning capabilities. Designed for easy installation and complete removability, the JB4 requires no splicing or cutting of factory wires, making it the ideal choice for your S68 engine. The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its 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, 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.
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