★ OFFICIAL AUTHORIZED DEALER of Burger Motorsports JB4 Tuners ★
ECUPROGRAM is a proud official dealer of Burger Motorsports. Every JB4 we sell is brand new and factory-fresh, shipped directly to you.
Shipping: 4-8 business days.
Power gains of up to 100hp and 100tq to the wheels on a stock vehicle
The JB4 is a plug-and-play Hyundai / Genesis performance tuner that connects to easy-to-access sensors in the engine bay and works with your factory ECU to optimize boost, timing, and fueling for stronger performance and reduced turbo lag.
Unlike basic tuning boxes, the JB4 includes a fully programmable CANbus system, upgradable firmware, and data logging. CANbus integration allows the JB4 to factor in pedal input, throttle position, gear, RPM, AFR, fuel trims, ignition advance, knock feedback, and more when controlling performance. It can also read and delete fault codes and includes safety strategies such as keeping boost lower until oil and coolant temperatures are up, and switching to a low-boost map if overheating, lean conditions, excessive knock, or overboost are detected.
The JB4 offers significantly more performance, functionality, and safety than an average performance chip. The default Map 1 runs about 4psi over stock peak, and maps (including stock and valet) can be selected on the fly using a BMS diagnostics cable or JB4 mobile adapter. Installation is discreet and fully removable with no trace when needed. Includes maps for 91 octane, 93 octane, and E85 (ethanol) mixtures. Fuel economy during normal driving is typically unchanged. Compatible with all driving modes.
Wirelessly Connect to your JB4: Our all-new JB4 PRO smartphone connection is included to wirelessly connect the JB4 tuner to your Bluetooth 4.0 compatible iOS or Android device. This option allows 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. 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.
JB4 Power Gains, Features, & Benefits
• Power gains of up to 100hp and 110tq to the wheels.
• Improves 0-60 and quarter mile times.
• Includes multiple tuning maps for different fuel types.
• Quick plug and play installation.
• Supports E85 ethanol blends.
• Reads and deletes fault codes.
• Displays and logs up to 40 engine parameters.
• Boost by gear control for improved traction.
• Controls exhaust flap operation on supported vehicles.
• Compatible with the free JB4PRO app.
• Offers better performance and safety than basic chip tunes.
• Full CANbus integration.
• Runs as smoothly as stock.
• Compatible with all driving modes.
• No impact on fuel economy during normal driving.
• Requires 91 octane or better for performance gains.
• Not VIN locked and fully removable.
• Includes billet aluminum enclosure.
• Designed and assembled in the USA.
 
Vehicle Fitment
If you don’t see your vehicle listed, send a photo of your engine bay to and we can verify compatibility. For previous Kia/Hyundai/Genesis models click here.
Hyundai
• 2021+ Hyundai Staria 3.5L SmartStream Turbo V6
Genesis
• 2022+ Genesis GV70 3.5L SmartStream Turbo V6
• 2021+ Genesis GV80 3.5L SmartStream Turbo V6
• 2025+ Genesis GV80 Coupe 3.5L SmartStream Turbo V6
• 2021+ Genesis G80 3.5L SmartStream Turbo V6
• 2022+ Genesis G90 3.5L SmartStream Turbo V6
 
What is a JB4?
The JB4 is a plug-and-play tune for turbocharged vehicles. It installs between your car’s sensors and ECU and improves performance by controlling boost and related parameters through these connections. The JB4 stands out with advanced connection points and processing, including CANbus, fuel and spark control, Bluetooth app support, and safety systems. BMS publishes free mapping and firmware updates as ongoing development allows. The JB4 is not VIN locked and can be removed, transferred, or resold later.
Is the JB4 a real tune?
Yes. By tapping into specific sensors and CANbus for real-time data, the JB4 can alter boost, timing, AFR, and fuel trims similar to an ECU reflash, while retaining factory safety systems and without unlocking or flagging the ECU.
RACE: JB4 tuned Genesis G70 vs Skyline on the HOONIGAN YouTube channel
Dyno Results
2021 Genesis GV80 3.5L Turbo, JB4 tuned with 91 octane and E20 fuel
Video