Description
The Burger Tuning BMS JB4 Performance Tuner is a fully plug-and-play tuning solution engineered specifically for Nissan’s 3.5L twin-turbo VR35DDTT platform. Designed and assembled in the USA, the JB4 delivers substantial power gains while maintaining factory drivability, safety systems, and reliability.
By integrating directly with factory engine sensors and CANbus, the JB4 works alongside the stock ECU to intelligently remap boost, timing, and fueling in real time. Unlike flash tuning, the JB4 does not permanently alter the ECU, does not leave a trace when removed, and does not trigger tuning flags. The vehicle remains unaware it is producing increased boost and power levels.
On a completely stock vehicle, the Burger Tuning BMS JB4 can deliver gains of up to 75 wheel horsepower and 79 wheel torque, with faster acceleration, reduced turbo lag, and improved throttle response. Fuel economy during normal driving conditions remains unchanged, and all factory driving modes are fully retained.
CANbus integration allows the JB4 to read and process critical engine data directly from the ECU, including throttle position, pedal input, ignition timing, fuel trims, air/fuel ratio, knock detection, gear position, and more. This real-time data enables more precise and safer tuning than basic piggyback systems that lack ECU-level communication.
The JB4 comes preloaded with multiple performance maps designed for different fuel types and driving conditions, including 91 octane, 93 octane, factory-style tuning, ethanol blends, and race fuel. Advanced features such as boost-by-gear control, fault code reading and clearing, and exhaust flap control (where supported) are included.
Wireless connectivity is standard through the included JB4 PRO Bluetooth system, allowing seamless connection to compatible iOS and Android devices. Using the free JB4 mobile app, users can change maps, log data, view live engine parameters, update firmware, and analyze performance directly from their smartphone. The Bluetooth module installs inside the JB4 enclosure for enhanced weather protection and a clean, factory-like appearance.
The Burger Tuning BMS JB4 is housed in a rugged billet aluminum enclosure, is not VIN-locked, and can be removed and resold at any time. Backed by a 5-year warranty, it represents one of the most advanced and proven plug-and-play tuning solutions available for modern turbocharged vehicles.
Vehicle Fitment
This product is ONLY compatible with the following vehicles equipped with the 3.5L Twin Turbo VR35DDTT engine:
- 2025+ Nissan Armada 3.5L V6 Twin Turbo
- 2025+ Nissan Armada NISMO 3.5L V6 Twin Turbo
- 2025+ Nissan Patrol 3.5L V6 Twin Turbo
Not compatible with non-turbo, diesel, or previous-generation engines.
Key Features and Benefits
- Power gains of up to 75whp and 79wtq on a stock vehicle
- Plug-and-play installation with no permanent ECU modifications
- CANbus OBDII integration for real-time ECU data and adaptive tuning
- Preloaded maps for 91 octane, 93 octane, factory-style tuning, E85 blends, and race fuel
- Boost-by-gear control for improved launches and traction
- Compatible with all factory driving modes
- Fuel economy unchanged during normal driving
- Ability to read and delete diagnostic fault codes
- Real-time data logging and gauge display via smartphone app
- Wireless Bluetooth connectivity included
- Not VIN locked and fully removable without a trace
- Billet aluminum JB4 enclosure for durability and protection
- Designed and assembled in the USA
- Backed by a 5-year warranty
What Is the JB4?
The JB4 is Burger Tuning’s flagship plug-and-play performance tuning system for turbocharged vehicles. Installed between factory sensors and the ECU, it enhances performance by intelligently modifying boost, fueling, and ignition behavior using real-time data. What separates the JB4 from other piggyback systems is its advanced CANbus integration, fuel and spark control, wireless smartphone connectivity, and continuous firmware and mapping updates.
Trusted worldwide and sold in over 67 countries, the Burger Tuning BMS JB4 has become the gold standard in plug-and-play turbo tuning for over a decade.
Is the JB4 a Real Tune?
Yes. The Burger Tuning BMS JB4 is a true performance tune. By accessing real-time sensor data and CANbus communication, it safely alters boost, timing, and fueling in a manner comparable to an ECU reflash, while retaining factory safeguards and without permanently altering the vehicle’s ECU. The result is smooth, reliable, and repeatable power gains with OEM-level drivability.
