Description
The Burger Tuning JB4 is a plug-and-play performance tuner engineered specifically for the 2025–Present Toyota 4Runner 2.4L Turbocharged I4. It provides gains of up to 60whp (75hp crank) on a completely stock vehicle running pump gas, with even higher gains available when using E85 mixtures, higher-octane fuel, and bolt-on modifications. The JB4 PRO is the most advanced and feature-rich tuning solution available for the newest generation 4Runner.
Installation is quick and simple using the included plug-and-play harness. With the JB4 installed, drivers gain access to advanced features that dramatically enhance performance and functionality, including in-dash map switching, boost-by-gear control, built-in data logging, code reading, and more.
No additional modifications are required. Install the JB4 as your first and only upgrade to experience smoother power delivery, stronger acceleration, and significantly improved performance while maintaining factory-like drivability.
The included JB4PRO app provides wireless connectivity to iOS and Android devices. Through the app you can analyze logs, switch maps, update firmware, and fine-tune settings using a clean, intuitive, and powerful interface equipped with built-in help tools and advanced log analysis features.
Vehicle Fitment
Toyota 4Runner (2025–Present)
- Engine: 2.4L Turbocharged I4
- Compatible trims: Limited
- SR
- SR5
- TRD Off-Road
- TRD PreRunner
- TRD Sport
- Platinum
- TRD Pro
- Trailhunter
JB4 Features & Benefits
- Power gains of up to 60whp on a stock vehicle
- Improves 0–60 mph acceleration and quarter-mile times
- Includes custom JB4 tuning with up to 8 maps for various fuels and modifications
- Ethanol-compatible tuning maps for E85 blends
- Ability to read and delete fault codes
- View and record up to 20 engine parameters in real time using the JB4PRO app
- Adjustable boost-by-gear for 1st, 2nd, and 3rd gears
- Compatible with the free JB4PRO app for logging and tuning adjustments
- Provides more performance, safety, and control than standard performance chips
- Plug-and-play installation with no permanent modifications
- Advanced CANbus OBDII integration
- Smoother and more refined performance than non-integrated chip tunes
- Maintains factory-like drivability
- Works with all existing driving modes
- Fuel economy unchanged during normal driving
- 91-octane or higher required for performance gains
- Not VIN-locked and fully removable without trace
- Can be resold or moved to another compatible vehicle
- Designed and assembled in the USA
- Backed by a 5-year warranty
What Is a JB4?
The JB4 is a plug-and-play performance tuning system for turbocharged engines. It connects between the vehicle’s sensors and ECU/DME to optimize performance using advanced processing and data interpretation. Unlike basic piggyback tuners, the Burger Tuning JB4 provides CANbus integration, fuel and spark control, Bluetooth connectivity, fault-code management, and continuous map and firmware development.
Burger Tuning offers free ongoing updates that improve performance and introduce new features. The system is not VIN-locked, allowing it to be removed, resold, or transferred to another compatible vehicle. With more than a decade of development and global distribution in over 67 countries, the JB4 remains the industry standard for plug-and-play turbocharged tuning.
