Description
The Burger Tuning JB4 V2 for Kia, Hyundai, and Genesis 2.5T SmartStream engines delivers up to +65hp and +80tq at the wheels on a completely stock vehicle — with even more power available on E85 blends or bolt-on mods.
This fully CANbus-integrated plug-and-play system remaps boost, ignition timing, and fueling for optimal performance while maintaining OEM smoothness and reliability. The JB4 can adjust mapping based on gear, throttle input, knock feedback, ignition advance, and air/fuel ratio, while also adding advanced safety features like low boost until oil and coolant reach safe operating temperatures.
You get 8 selectable maps, including stock and valet mode, all changeable on the fly via the optional JB4 Mobile App or BMS Data Cable. Installation is discreet, fully reversible, and leaves no ECU flash footprint.
Features & Benefits
- Power gains of up to 65whp / 80wtq on stock hardware
- Preloaded with 8 maps for various fuels & mods (91, 93, E85)
- Ethanol (E85) compatible tuning maps
- Boost-by-gear control for improved traction
- View & log up to 40 engine parameters in real time via JB4 app
- Built-in diagnostics — read & clear fault codes
- Advanced safety features: temp-based boost control, knock and AFR protection
- Smooth OEM-like drivability with unchanged fuel economy during normal driving
- Quick plug-and-play install, no cutting or splicing
- Fully CANbus OBDII integrated
- Not VIN locked — transferable to another compatible car
- Rugged billet aluminum enclosure
- Designed & assembled in the USA
- 5-year warranty
Vehicle Fitment
Kia
- 2020–2023 Stinger 2.5L Turbo
- 2020+ Sorento 2.5L Turbo
- 2019+ K5 2.5L Turbo
Hyundai
- 2020+ Santa Fe 2.5L Turbo
- 2020+ Sonata 2.5L Turbo
- 2022+ Santa Cruz 2.5L Turbo
- 2022+ Kona 2.5L Turbo
Genesis
- 2020+ G80 2.5L Turbo
- 2020+ GV70 2.5L Turbo
- 2020+ GV80 2.5L Turbo
What is a JB4?
The JB4 is the industry’s most advanced piggyback ECU tuning system for turbocharged vehicles. Installed between the factory sensors and ECU, it optimizes engine parameters without permanently altering the factory software.
With CANbus integration, the JB4 accesses and modifies dozens of factory data channels, enabling precise mapping, E85 support, and advanced protections. Burger Motorsports regularly releases free firmware updates with new features and maps, ensuring your tune evolves with your setup.
The JB4 is fully removable, not VIN-locked, and can be resold or swapped to another compatible vehicle.
