JB4 Tuner for 2021+ Audi A3 8Y & 2024+ VW MK8 GTI (Gen4) - Burger Tuning Select:JB4PRO Adapter (Requires Free JB4 App) With this tool

With this tool

leaving enough room get your jack underneath the ARM Jack Pad

this kit is upgradeable from Stage 2 to Stage 3

Short Type Outer Electrode (Anti-Vibration)

Uses stock mounting bolts

JB4 Tuner for 2021+ Audi A3 8Y & 2024+ VW MK8 GTI (Gen4) - Burger Tuning Select:JB4PRO Adapter (Requires Free JB4 App) With this toolThe 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. 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. Now includes the JB4PRO adapter and free app built in! The JB4 features CANbus connectivity for more advanced tuning, direct AFR control,