Performance Tuner for EA888 Gen4 Engines

The JB4 Group 17 is a true user-adjustable, plug-and-play performance tuner specifically designed for EA888 Gen4 turbocharged engines within the Audi Group range. This device installs between your car's sensors and the DME/ECU, manipulating vehicle performance through these connections to significantly increase speed. This JB4 tuner offers advanced features including CANbus connectivity for more sophisticated tuning, direct AFR control, and integrated safety systems that monitor boost, air/fuel ratio, fuel trims, and engine knock. It also provides boost mapping by gear to enhance traction and supports E85 ethanol blends. Power gains start at 50 bhp and 55 ft-lb with 91 octane fuel, and can reach up to 65 hp and 65 ft-lbs when using 93 octane fuel. Installation is described as quick and plug-and-play, and the unit is fully reversible and not VIN-locked, allowing it to be easily removed or swapped between vehicles. The JB4 includes a billet aluminum enclosure and comes with a 5-year warranty. It is designed and assembled in the USA. Additionally, the JB4 Group 17 now includes the JB4PRO adapter for wireless connection to iOS or Android devices via Bluetooth 4.0. This enables real-time display and logging of up to 40 engine parameters, map switching, firmware updates, and advanced log analysis through the free JB4PRO mobile app. It also controls exhaust flap operation on supported vehicles and runs as smoothly as stock, compatible with all driving modes without impacting fuel economy during normal driving.