Description
The Burger Tuning JB4 is the ultimate plug-and-play performance upgrade for the 2021+ Ford Bronco and Bronco Raptor, delivering up to +100hp and +120wtq at the wheels on a completely stock vehicle — without the risks of ECU flashing.
Connecting to just two easily accessible sensors plus the OBDII port for full CANbus integration, the JB4 optimizes boost, timing, and fueling in real time for smoother power delivery, reduced turbo lag, and maximum reliability. It works seamlessly with the factory ECU and is fully removable without leaving a trace.
The JB4 automatically detects engine size, making it compatible with Bronco 2.3L EcoBoost, 2.7L EcoBoost, and Bronco Raptor 3.0L V6 Turbo engines. Preloaded maps support pump gas, E85 blends, and race fuel, with additional features like boost-by-gear for better launches, fault code reading/clearing, and free firmware updates from Burger Motorsports.
JB4 Power Gains, Features & Benefits
- Up to +100hp / +120wtq on a stock 2.7L Bronco
- Faster 0–60 mph & 1/4 mile times
- Preloaded with 8 maps for various fuels & mods
- Auto engine size detection – fits 2.3L, 2.7L, and 3.0L Bronco Raptor
- 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 2.3L EcoBoost
- 2021–Present Ford Bronco 2.7L EcoBoost
- 2022–Present Ford Bronco Raptor 3.0L V6 Twin Turbo
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.
