JB4 Tuner

The Speedzone Performance JB4 Tuner is a plug-and-play performance tuning device designed for turbocharged vehicles, offering a significant increase in power and responsiveness. It installs discreetly between your car's sensors and its DME/ECU, allowing it to remap boost, timing, and fueling for optimal performance and reduced turbo lag. This advanced tuner boasts a 64MHz processor capable of sampling sensors 800 times per second using dedicated 10-bit digital to analog converters, ensuring smooth and powerful performance delivery. It integrates with your factory ECU tuning and utilizes a plug-and-play OBDII CANbus connection to gather critical engine data in real-time, such as pedal position, throttle position, timing advance, fuel trims, air/fuel ratio, and engine knock. This comprehensive data integration allows for unparalleled power increases and finer control than basic chip tunes. The JB4 Tuner offers multiple tuning maps suitable for various fuel types, including E85 ethanol blends, and is compatible with all driving modes. It requires 91 octane or better for optimal performance gains. The system is not VIN-locked and can be easily removed without a trace, making it fully reversible. It includes billet aluminum enclosure, is designed and assembled in the USA, and comes with a 5-year warranty. Additionally, it provides features like boost by gear control for improved traction, the ability to read and delete fault codes, and controls exhaust flap operation on supported vehicles. For enhanced user experience, the JB4 Tuner is compatible with the JB4 PRO smartphone connection, allowing wireless connectivity to a Bluetooth 4.0 compatible iOS or Android device. This enables users to record and analyze vehicle and tuning data, change performance maps, and update firmware. The JB4PRO free app features an intuitive interface, help buttons, and advanced log analysis tools.