Description
JB4 Tuner for 2024+ Maserati GranTurismo Trofeo & Modena
Unlock the full potential of your 2024+ Maserati GranTurismo Trofeo or Modena with the JB4 Tuner, the premier plug-and-play performance solution for twin-turbo V6 engines. Designed to deliver safe, substantial horsepower and torque gains while maintaining factory drivability, the JB4 improves throttle response, reduces turbo lag, and optimizes performance across all driving conditions.
Plug-and-Play Installation
The JB4 attaches to two easily accessible sensors in the engine bay and works seamlessly with your factory ECU to adjust boost, timing, and fueling for maximum performance. Installation is fully discrete and reversible, and the tuner can be removed quickly without leaving any trace. Normal fuel economy, factory driving modes, and emissions remain unaffected.
Advanced CANbus Integration
Unlike other tuning solutions, the JB4 includes full CANbus functionality, allowing it to read real-time engine data directly from your Maserati’s ECU. It monitors:
- Pedal and throttle position
- Timing advance and ignition data
- Air/fuel ratio and fuel trims
- Knock detection
- Turbo speed and boost levels
- Gear, RPM, and load parameters
This data allows the JB4 to provide smooth, safe, and powerful performance gains that rival ECU flash tuning without ever altering the ECU.
Performance Maps & Features
The JB4 comes preloaded with multiple tuning maps, including:
- Default Map 1: 4 psi over stock peak
- Maps for 91+ and 93+ octane fuels
- E85 ethanol-compatible maps
- Valet and stock modes
- Fully customizable maps via BMS cable or Bluetooth adapter
Other key features include:
- Boost by gear for improved traction
- Reads and clears fault codes
- Logs up to 40 engine parameters
- Controls exhaust flap operation on supported vehicles
- Quick plug-and-play installation
- Supports E85 ethanol blends
- Compatible with all factory driving modes
- Designed and assembled in the USA
- 5-year warranty
Wireless JB4PRO Connectivity
The JB4PRO adapter allows wireless connection to iOS and Android devices via Bluetooth 4.0. With the JB4PRO mobile app, you can:
- Change performance maps on the fly
- Record and analyze vehicle and tuning data
- Update firmware with free map and feature releases
- Access advanced log analysis and diagnostics
The adapter fits fully inside the JB4 enclosure for a streamlined, weather-protected setup.
Maserati Vehicle Fitment
- 2024+ Maserati GranTurismo Modena 3.0L Twin-Turbo V6
- 2024+ Maserati GranTurismo Trofeo 3.0L Twin-Turbo V6
What is a JB4 Tuner?
The JB4 is a plug-and-play performance tuner that installs between your car's sensors and ECU. By integrating CANbus, advanced spark and fuel control, and Bluetooth connectivity, it provides real-time tuning, safe power increases, and enhanced vehicle performance without permanent ECU modifications. The JB4 is not VIN-locked, allowing easy removal or transfer between vehicles.
Is the JB4 a Real Tune?
Absolutely. By monitoring and manipulating boost, timing, and fuel trims in real time, the JB4 provides power and torque gains comparable to an ECU reflash, while retaining factory safety systems and drivability. It is safe, smooth, and fully reversible.
