
JB4 Tuner for 2021+ Audi A3 8Y/ VW MK8 GTI/ Atlas/ (Gen4)- Burger Tuning
Group 17 JB4 for VW EA888 Gen4 on MK8 VW GTI The JB4 is a true user adjustable plug and play performance tuner for all EA888 Gen4 based models in the Audi Group range with electric assist.The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more.The unit can be used with our JB4 Bluetooth Connect kit providing for full in-car engine parameter display, map switching, and adjustment. The JB4 is a true user adjustable plug and play performance tuner. Power Gains: Starting at 50bhp and 55ft-lb with 91 octane/95Ron, 65hp and 65ft lbs on 93 octane/98Ron. Wirelessly Connect to your JB4: Grab one of our smartphone connection options to wirelessly connect the JB4 BMW tuner to your Bluetooth 4.0 compatible iOS or Android device. Both options allow you to record and analyze vehicle and tuning data,