Group 15: JB4 for Audi EA825 4.0TT C8 RS6/7, RS Q8, SQ7/8, & Urus

Power gains from 70hp and 100tq to the wheels on a stock vehicle without the risks of flashing!

Power gains of up to 120whp and 160wtq bring the car to life allowing 1/4 mile potential deep into the 10s. Unlike other generic tuning devices, the JB4 includes full CANbus integration via the OBDII port for advanced tuning, safety features, and diagnostics, as well as electronic wastegate control for superior boost targeting. This is simply the best tuning box available for your Audi.

Installation is fully reversible, attaching to the TMAP sensors and OBDII port. Firmware updates loaded via JB4 Mobile or a BMS Data Cable will be provided for free as we expand the JB4’s performance, maps, and features with future development.

Wirelessly Connect to your JB4:Our all-newJB4 PROsmartphone connection is included to wirelessly connect the JB4 tuner to your Bluetooth 4.0 compatible iOS or Android device. This option allows you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look. The JB4PRO Free app features an intuitive easy-to-use interface, help buttons, and advanced log analysis tools that can estimate the performance of your car and help identify any tuning concerns.

For more information about theJB4PRO mobile appclick here.

JB4 Features & Benefits

Power gains of up to 120hp and 130tq to the wheels on a stock vehicle
Improves 0-60 and quarter mile times.
Includes multiple tuning maps for different fuel types.
Quick plug and 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 vehicles.
Compatible with the free JB4PRO app.
Offers better performance and safety than basic chip tunes.
Full CANbus integration.
Runs as smoothly as stock.
Compatible with all driving modes.
No impact on fuel economy during normal driving.
Requires 91 octane or better for performance gains.
Not VIN locked