Universal Water/Methanol Injection (WMI) Kit

The JB4 Universal Water/Methanol Injection (WMI) Kit is designed to unlock tremendous power potential, allowing vehicles to achieve results similar to running 100 octane race gas or E85 consistently, with added cooling benefits for even greater power gains. This kit features seamless integration with the JB4 tuning system, enabling dynamic progressive flow mapping based on boost, throttle position, engine speed, intake temperature, and other CANbus data. A key safety feature is the pump flow feedback to the JB4, which creates a comprehensive, flow-based safety system. If the tank runs empty or flow is compromised, the JB4 will safely reduce performance to prevent engine knock. The system also allows for driver-selectable WMI activation/deactivation, automatic disengagement during traction control events, and WMI flow data display via dash or JB4 Mobile. Users can select injection nozzle sizes (BM10 suggested for most applications), line types, and WMI tanks during checkout. Optional accessories include a billet tank cap with a check valve. Specific fitment is noted for certain BMW models: the 3 Series F30 (2012-2018), F80 M3 (2015-2020), 4 Series F32 coupe (2014-2020), and F82 M4 (2015-2020, does not fit convertible). The 2 Gallon Stealth tank is designed for F10 5 Series BMW sedans (2011-2016), fitting within the trunk cavity. The 3 Gallon Stealth Tank is designed for F3X/F8X chassis BMWs.