Description
Transform your JB1/Stage1 into a full JB4 system with the Burger Tuning VW JB1 to JB4 Upgrade Kit. Designed for EA888-powered Volkswagen models, this kit adds CANbus integration for precise tuning control and advanced safety features.
The JB4 upgrade unlocks:
- Direct AFR control for optimized fueling
- Advanced boost mapping by gear for improved traction
- Integrated water/methanol injection (WMI) control
- Knock, fuel trim, and air/fuel safety systems
- Expanded data logging and in-depth tuning customization
This kit is $175 outright—no core exchange required. You can keep your old Stage1 board as a backup.
Note: The JB4 requires exclusive OBDII/CANbus access during tuning and is not compatible with certain CANbus-enabled boost gauges or 3rd-party devices that also need OBDII/CANbus access.
Ordering Details
When ordering, select:
-
Drive Orientation:
LHD (Left-Hand Drive) – USA, most global markets
RHD (Right-Hand Drive) – UK, AU, SA, and select markets -
Stage1 Hardware Version:
REV2 (purchased after ~11/1/16) – identified by an unused black Molex 2-position connector in the harness
Earlier Versions – refer to the installation guide for identification
Key Benefits
- Upgrade from Stage1/JB1 to full JB4 functionality
- CANbus connectivity for advanced tuning capabilities
- Boost-by-gear for traction optimization
- Integrated WMI control for higher boost applications
- Real-time data logging and diagnostics
- Retain your Stage1 as a backup
- Plug-and-play installation with your existing harness
