Water / Meth Injection Stage 2 kit - JB4 controlled

Water / Meth Injection Stage 2 kit - JB4 controlled

F87 M2


This kit is designed for the water meth user who wishes to control & fulling intergrate their system from their JB4.

The key to a safe and effective WMI setup is tuning integration. All BMS kits integrate to the JB4 tuning system allowing for precise mapping based on boost, throttle position, engine speed, intake temperature, advance, gear, and other data elements available to the JB4 through its CANbus system. In addition a pump flow signal is fed back to the JB4 allowing for a safe and smooth progressive boost mapping. If the tank runs empty or flow drops for any reason the JB4 will safely back down performance to avoid knock. In addition WMI can be activated or disabled from the driver’s seat, will automatically disengage during traction control or safety map situations, and WMI flow data can displayed in dash and/or via your JB4 Mobile logging device.


The kit will also include an injector to suite your engine horse power.


Kit Contents

  • 200psi pump
  • Failsafe
  • 20ft of High Pressure Tubing
  • Injector/s
  • Nozzle Holder/s
  • 300psi Solenoid
  • tank tap
  • All fittings needed for installation
  • Inline Fuse Holder with 10 amp fuse
  • 10' of red and black wire
  • Zip ties and wire splices and connectors

N54/N55 (135i, 335i, M2, M135i) with factory turbo(s): Single CM10 or dual CM5
N54/N55 (135i, 335i, M2, M135i) with larger hybrid turbo(s): Single CM12 or dual CM7
M140i B58 with factory or larger turbo: Dual CM7 
M3/4 S55 with factory turbo(s): Dual CM5
M3/4 S55 with larger hybrid turbo(s): Dual CM7 
M5 s63tu with factory or larger turbos: Dual CM10 


Water/Methanol injection for your forced induction project is the perfect way to greatly reduce intake air temperatures while increasing fuel octane levels. This advantage will allow for safe tuning of higher boost levels and more aggressive ignition tuning, without the cost of race fuels!



Reduces Air Inlet Charge Temps The term “liquid intercooling” with water/methanol injection refers to a highly atomised mist of water/methanol that is injected into the air stream and begins to evaporate. As it does, this evaporation effect reduces air charge temps by as much as 100 degrees, and delivers a more oxygen-rich air charge.

Reduces Detonation (Knock) Water absorbs heat (6x more than fuel), and methanol is a cool burning, anti-knock rated fuel. When combined and introduced into the inlet stream, they can effectively increase your vehicle’s anti-knock index so you can reliably increase boost pressure and advance ignition timing using pump fuel.

Reduces Carbon Deposits Modern vehicles fitted with Exhaust Gas Re circulation (EGR) devices for emissions control promote heavy carbon build up inside the air intake. This carbon build-up can create ‘hot spots’ in the combustion chambers that can cause detonation. Water/methanol injection has a ‘steam cleaning’ effect that reduces this carbon build up, and in some cases can increase fuel economy.


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Water / Meth Injection Stage 2 kit - JB4 controlled
Water / Meth Injection Stage 2 kit - JB4 controlled

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