Description
Disclaimer: This product is brand new and unused. It is being sold as an open-box item only.
Unlock the true performance potential of your Ford Mustang 2.3L EcoBoost with the Burger Motorsports JB4 Performance Tuner—the most advanced plug-and-play tuning system available for modern turbocharged vehicles. Designed to deliver substantial horsepower and torque gains while maintaining factory-level drivability and safety, the JB4 transforms how your Mustang accelerates, responds, and performs.
Unlike basic plug-in chips or permanent ECU flashes, the JB4 integrates directly with the vehicle’s CANbus system, allowing it to adjust boost pressure, ignition timing, and fueling in real time based on live engine data. The result is smooth, consistent power delivery that feels OEM—until you put your foot down.
With E85-compatible tuning maps, wireless smartphone control, and a fully reversible installation, the JB4 offers unmatched flexibility whether your Mustang is completely stock or lightly modified.
Performance Highlights
-
Up to +60 wheel horsepower and +100 wheel torque on an otherwise stock EcoBoost Mustang
-
Faster 0–60 mph times and improved quarter-mile performance
-
Enhanced throttle response and stronger mid-range power
Key Features & Benefits
-
8 preloaded JB4 maps for stock, pump gas, E85, and performance setups
-
E85 ethanol-compatible maps for maximum power potential
-
Boost-by-gear control to improve traction in 1st–3rd gears
-
Read and clear fault codes directly through the JB4 system
-
Monitor and log 40+ real-time engine parameters
-
Wireless tuning and data logging via the FREE JB4PRO mobile app
-
Advanced CANbus OBDII integration for precise and safe tuning
-
Plug-and-play installation — no cutting, splicing, or ECU unlocking
-
Fully reversible with no digital footprint
-
Maintains stock-like drivability and fuel economy during normal driving
-
Compatible with all factory driving modes
-
Requires 91+ octane fuel for optimal performance
-
Not VIN-locked — transferable between vehicles
-
Rugged billet aluminum enclosure for long-term reliability
-
Designed and assembled in the USA
-
Backed by a 5-year manufacturer warranty
Vehicle Fitment
Ford Mustang 2.3L EcoBoost
-
2015–2023 Mustang EcoBoost® 2.3L Turbocharged I4
-
2024+ Mustang EcoBoost® 2.3L Turbocharged I4
What Is a JB4?
The JB4 is a next-generation piggyback ECU tuning platform engineered specifically for turbocharged engines. Installed between the factory ECU and critical engine sensors, it dynamically adjusts performance parameters using high-speed CANbus data such as boost pressure, AFR, ignition timing, fuel trims, throttle input, and knock control.
Unlike traditional tuning boxes, the JB4 offers real tuning intelligence, extensive safety systems, Bluetooth connectivity, and ongoing free firmware and map updates—keeping your tune current as your setup evolves.
Is the JB4 a Real Tune?
Yes. The JB4 delivers tuning control comparable to an ECU flash by actively managing boost, timing, AFR, and fueling in real time—without ECU unlocking or permanent modification. It retains all factory safeguards while delivering smooth, aggressive power gains, making it the ideal solution for Mustang EcoBoost owners who want maximum performance with complete peace of mind.
Disclaimer: Open box products are final sale and cannot be returned or exchanged after purchase, except in the case of an error on our part.
