Description
The Burger Tuning JB4 Performance Tuner is the most advanced plug-and-play power upgrade available for the 2015+ Ford Mustang EcoBoost 2.3L. Delivering up to +60whp and +100wtq on a factory setup, the JB4 remaps boost, timing, and fueling for maximum performance, improved throttle response, and reduced turbo lag — all while retaining stock-like drivability and safety.
Unlike flash tunes, the JB4 is fully reversible and leaves no trace when removed. With CANbus OBDII integration, the JB4 actively reads real-time ECU data such as throttle input, ignition timing, AFR, knock, and gear position, allowing it to dynamically adjust performance for smooth and safe power delivery.
Multiple preloaded maps are included for 91 octane, 93 octane, E85 blends, race gas, and even a VALET mode, with boost-by-gear control to improve traction. You can also read/delete fault codes, control exhaust flaps (in most applications), and datalog directly to your phone via the optional JB4 Mobile or JB4PRO wireless adapters.
Features & Benefits
- Gains of up to +60whp and +100wtq on a stock Mustang EcoBoost
- Plug & Play installation – no cutting, splicing, or ECU flash
- Preloaded with Ford-specific JB4 tuning software and up to 8 adjustable maps
- Ethanol (E85) compatible tuning
- Boost-by-gear control for optimized launches
- View & log 40+ engine parameters via the JB4 app
- Read and clear fault codes from your mobile device
- Compatible with all driving modes (including towing)
- Built-in safety protocols for temperature, AFR, knock, and boost
- No impact on fuel economy during normal driving
- Fully reversible and not VIN-locked – move to another car or resell later
- Rugged billet aluminum enclosure for durability
- Compatible with JB4 Mobile by DMAC ($29) or JB4PRO (free) for wireless tuning
- Made in the USA with a 5-year warranty
Vehicle Fitment
Ford Mustang EcoBoost
- 2015–2023 Mustang EcoBoost® 2.3L turbocharged I4
- 2024+ Mustang EcoBoost® 2.3L turbocharged I4
What is a JB4?
The JB4 is a plug-and-play piggyback tuner designed for turbocharged vehicles. Connecting between your Mustang’s sensors and ECU, it modifies boost, fueling, and ignition timing dynamically to extract maximum power safely.
Thanks to CANbus integration, the JB4 has access to critical engine data, enabling advanced features like ethanol mapping, safety protections, boost-by-gear, and on-the-fly map switching. Unlike ECU flashes, it can be removed without leaving a trace, making it ideal for leased vehicles or those under warranty.
For over a decade, Burger Motorsports’ JB4 has been the gold standard in safe, flexible, and powerful turbo tuning.
