Water/Methanol/Alcohol injection commonly referred to as WMI allow you to make tremendous amounts of power on pump gas. The effect is similar to running 100 octane race gas or E85 fuel all the time with the additional cooling benefits allowing for more power than you can make on race gas or E85 alone.

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.

BMS kits include a high quality 220psi Aquatec WMI pump (the industry standard), methanol compatible solenoid with filter, compression fittings reducing the risk of dangerous leaks, and all required wiring and mounting hardware.

There are two decisions to be made when selecting a WMI kit. Which tank and which nozzles.

You may also wish to purchase the BMS Audi BMW Upgraded Billet WMI Tank Cap with Safety Check Valve 

We offer 4 distinct styles of tanks

1) 1 Gallon universal tank: The least expensive option this tank is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk. The tank is clear to allow visually checking the fluid level. Includes 2-way vented black plastic cap and a compression pump feed fitting. Upgraded billet lid with 1-way check valve available. 

2) 2 Gallon universal low profile tank: This tank allows the methanol pump to mount to the bottom of the tank making for a clean and fast installation. It’s universal in nature and will fit a wide variety of trunk applications. The larger capacity means more time between WMI fill ups. Offered in black and in clear to allow visually checking the fluid level. Works with all DDP 5800 pumps. Includes 2-way vented black plastic cap and a compression pump feed fitting. Upgraded billet lid with 1-way check valve available.

3) 3 Gallon F chassis stealth tank: Our newest offering, this completely custom design fits in the hidden trunk cavity found in 2013+ F3X and 2015+ F8X chassis vehicles. The WMI pump mounts directly to the bottom of the tank allowing for a quick and clean installation. The bottom of the tank includes a sump and baffle allowing for consistent performance even as the tank drains. Includes 2-way vented black plastic cap and a compression pump feed fitting. Upgraded billet lid with 1-way check valve available. 

4) 2 Gallon F10 5 series stealth tank: Our newest offering, this completely custom design fits in the hidden trunk cavity found in 2011+ F10 vehicles. The WMI pump mounts directly to the bottom of the tank allowing for a quick and clean installation. The bottom of the tank includes a sump and baffle allowing for consistent performance even as the tank drains. Includes 2-way vented black plastic cap and a compression pump feed fitting. Upgraded billet lid with 1-way check valve available.

The nozzles are determined by the intended power and how many bungs your chargepipe has. The nozzles are 1/8” NPT and screw in to bungs included on most aftermarket chargepipes. Our "super atomizing" nozzles are provided by CoolingMist and well known for their great attomization and flow characteristics. The nozzle number represents the approximate gallons per hour of fluid when at full flow. Generally speaking running two smaller nozzles is preferred to one larger nozzle for an equal flow to improve fluid atomization and distribution. Below are some general nozzle suggestions but feel free to email us for nozzle advice if your situation is unique.

Nozzle Guide

N20/N26: Single BM7
N54/N55 with factory turbo(s): Single BM10 or dual BM5
N54/N55 with larger hybrid turbo(s): Single BM12 or dual BM7
B48 with factory or larger turbo: Dual BM5
B58 with factory or larger turbo: Dual BM7 
S55 with factory turbo(s): Dual BM5
S55 with larger hybrid turbo(s): Dual BM7 
s63tu with factory or larger turbos: Dual BM10

Tank Guide

1 gallon universal tank

The least expensive option this tank is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk. The tank is clear to allow visually checking the fluid level. 

Comes with standard 2 way vented black plastic cap. 
Upgraded billet lid with 1-way check valve available below.

Tank dimensions: L 11" x W 9" x H 4.5"

Applications
Universal trunk mount

BMS stealth tank

With our 3 gallon stealth tank the WMI pump mounts directly to the tank and the entire assembly fits cleanly within the existing trunk cavity in your F3X or F8X vehicle below the trunk floor. Works with all DDP 5800 pumps. Made in USA.

Comes with standard 2 way vented black plastic cap. 
Upgraded billet lid with 1-way check valve available below.

Includes 1/4" meth line with brass tank connection fitting and Black plastic 90 degree fitting for the pump.

Tank dimensions: L 26.75" x W 9.75" X H 7.5"

2 gallon universal low profile tank

With our 2 gallon universal tank the WMI pump mounts directly to the tank for the ultimate easy to install tank. This tank is compact allowing for a wide range of mounting on any horizontal surface in the trunk. Offered in black and in clear to allow visually checking the fluid level. Works with all DDP 5800 pumps. Made in USA.

Comes with standard 2 way vented black plastic cap. 
Upgraded billet lid with 1-way check valve available below.

Tank dimensions: L 15.5" x W 8" x H 8.25"

Applications
Universal trunk mount

BMS stealth tank

With our 2 gallon stealth tank the WMI pump mounts directly to the tank and the entire assembly fits cleanly within the existing trunk cavity in your F10 vehicle for the ultimate easy to install no compromise kit. Stows hidden under your trunk floor. Comes with standard plastic 2 way vented black plastic cap. Works with all DDP 5800 pumps. Made in USA.

Tank dimensions: L 16.5" x W 6.5" x H 8.25" 

Applications
• 2011-2016 5 Series F10 sedan all modles including M5

• 2012+ 3 Series F30 sedan 
• 2014+ 4 Series F32 coupe
• 2015+ F80 M3
• 2015+ F82 M4

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your license plate or the last 7 digits of your VIN. Simply enter your car details prior to checkout.  

METH-1GW

Manufactured by

Burger Motorsports 

Warranty

BMS do no offer warranty on this product