Description
The Burger Tuning JB4 is the ultimate plug-and-play performance upgrade for the 2021+ Ford Bronco Sport, delivering up to +60hp and +80wtq at the wheels on a completely stock truck — without the risks of ECU flashing.
This tuner connects to two easily accessible engine bay sensors plus the OBDII port for full CANbus integration, allowing real-time boost, timing, and fueling adjustments for smoother power delivery, reduced turbo lag, and maximum reliability. It works seamlessly with the factory ECU, is compatible with both 1.5L EcoBoost and 2.0L EcoBoost models, and can be removed without leaving a trace.
Preloaded maps support pump gas, E85 blends, and race fuel. Advanced features include boost-by-gear for better traction, fault code reading/clearing, and free firmware updates from Burger Motorsports.
JB4 Power Gains, Features & Benefits
- Up to +60hp / +80wtq on a stock Bronco Sport
- Faster 0–60 mph & 1/4 mile times
- Preloaded with 8 maps for various fuels & mods
- Auto engine size detection – works with 1.5L & 2.0L EcoBoost
- Ethanol (E85) compatible tuning maps
- Boost-by-gear control for 1st–3rd gear launches
- View & log up to 40 engine parameters in real time via JB4 app
- Read & delete fault codes
- Exhaust flap control (where supported)
- CANbus OBDII integration for advanced safety & performance
- Runs as smoothly as stock in all driving modes
- Quick, reversible Plug & Play installation
- No fuel economy loss during normal driving
- 91+ octane required for performance gains
- Not VIN-locked – transferable or resellable
- Rugged billet aluminum JB4 enclosure
- Made in USA – 5-year warranty
- Free USA shipping
Map Guide
- Map 0: Disable JB4 (stock tune)
- Map 1: +3.5psi peak – 91+ octane (default)
- Map 2: +3.5psi – reduced taper, more aggressive than Map 1
- Map 3: +4psi – for 93+ octane and/or light mods
- Map 4: +6psi – ~30% E85 mix
- Map 5: +7psi – ~30% E85 &/or race fuel
- Map 6: Custom user-adjustable
- Map 7: WMI (water/meth injection) progressive tuning
Vehicle Fitment
- 2021–Present Ford Bronco Sport 1.5L EcoBoost
- 2021–Present Ford Bronco Sport 2.0L EcoBoost
What is a JB4?
The JB4 is a sophisticated piggyback tuning system for turbocharged engines, sitting between your vehicle’s sensors and ECU to enhance performance without permanently altering factory programming. Unlike basic chips, it uses CANbus data, fuel & spark control, and Bluetooth integration for unmatched safety, flexibility, and smooth drivability. It’s fully removable, not VIN-locked, and comes with free firmware updates and 8 configurable maps to match your fuel and modification setup.
