Description
Unlock the full potential of your Maserati 3.0L twin-turbo with the JB4 Performance Tuner. Designed for plug & play installation, the JB4 works with your factory ECU to remap boost, timing, and fueling for optimal performance and reduced turbo lag. Its 64MHz processor samples sensors 800 times per second with dedicated 10-bit digital-to-analog converters, ensuring smooth and powerful power delivery.
Unlike other tuning systems, the JB4 includes fully programmable CANbus integration, upgradable firmware, and advanced data logging, giving you precise control and insight into your vehicle’s performance.
The default map provides 4psi over stock peak, with additional maps adjustable via BMS data cable or Bluetooth adapter. Installation is quick, fully reversible, and leaves no trace, while fuel economy during normal driving remains unchanged. Compatible with all driving modes.
JB4PRO Wireless Connectivity
The JB4PRO adapter is included for wireless connection to iOS and Android devices via Bluetooth 4.0. The app allows you to:
- Record and analyze vehicle and tuning data
- Switch performance maps
- Update JB4 firmware with free releases from BMS
The adapter fits entirely inside the JB4 enclosure for enhanced weather protection and a sleek appearance, while the JB4PRO app provides an intuitive interface, advanced log analysis, and performance insights.
Key Features & Benefits
- Improves 0-60 mph and quarter-mile times
- Multiple tuning maps for different fuel types
- Quick plug & play installation
- Supports E85 ethanol blends
- Reads and deletes fault codes
- Displays and logs up to 40 engine parameters
- Boost-by-gear control for improved traction
- Controls exhaust flap operation on supported models
- Compatible with the JB4PRO app
- Full CANbus integration
- Smooth performance, compatible with all driving modes
- No impact on normal fuel economy
- Requires 91 octane or higher for maximum gains
- Not VIN locked; fully removable
- Includes billet aluminum enclosure
- Designed and assembled in the USA
- Backed by a 5-year warranty
Maserati Vehicle Fitment
Ghibli
- 2013+ Maserati Ghibli, Ghibli S, Ghibli S Q4, Ghibli Modena Q4 3.0L twin-turbo
Quattroporte
- 2014+ Maserati Quattroporte S Q4 3.0L twin-turbo
Levante
- 2016+ Maserati Levante 3.0L twin-turbo
Grecale
- 2023+ Maserati Grecale Trofeo 3.0L twin-turbo
What is a JB4?
The JB4 is a plug & play performance tuner for turbocharged vehicles. It installs between your car’s sensors and DME/ECU, manipulating boost, timing, and fueling for safe, smooth, and significant power gains. Advanced CANbus integration, fuel & spark control, and Bluetooth connectivity separate the JB4 from other tuning systems. The tuner is fully removable, not VIN-locked, and continuously supported with free firmware updates from BMS.
Is the JB4 a Real Tune?
Yes. The JB4 uses real-time sensor and CANbus data to adjust boost, timing, air/fuel ratio, and fuel trims, achieving effects similar to an ECU reflash without your Maserati ever knowing it’s tuned. The result is enhanced power, torque, and drivability while retaining all factory safety systems.
