JB4 for Hyundai / Genesis 3.5L Turbo SmartStream (V4)

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: Add the JB4PRO smartphone connection to wirelessly connect the JB4 tuner to your Bluetooth-compatible iOS or Android device. Record and analyze vehicle and tuning data, change JB4 performance maps, and update firmware as we release free updates with new features and refined mapping.

The adapter fits inside the JB4 enclosure for improved weather protection and a cleaner installation. The free JB4PRO app includes an easy interface, help buttons, and advanced log analysis tools to estimate performance and help identify tuning concerns.

Hyundai / Genesis

Vehicle Fitment

• If you don’t see your vehicle listed, send a photo of your engine bay to sales@burgertuning.com and we can verify compatibility. Hyundai
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