BMS 2 Gallon Stealth Water/Methanol Injection (WMI) for F10 5 Series BMW hides under the trunk deck

This completely custom design fits cleanly within the existing trunk cavity in your F10 BMW for the ultimate easy to install no compromise kit. The Water/Methanol Injection (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. 

Optional upgraded blue billet water/methanol injection (WMI) cap with 1-way check valve available here.

The nozzles are determined by the intended power and how many bungs your charge  pipe has. The nozzles are 1/8” NPT and screw in to bungs included on most aftermarket chargepipes. Our BMS "super atomizing" nozzles are well known for their great atomization 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.

Features & Benefits

• Pump mounts directly to the tank
• Works with all DDP 5800 pumps
• Super low profile design
• Available in clear for visually checking fluid levels
• Bolts to an existing point in the vehicle
• Includes 2-way vented black plastic cap
• Optional upgraded blue billet cap with 1-way check valve available here.
• Includes a compression pump feed fitting
• Made in USA

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

Vehicle Fitment
• 2011-2016 F10 BMW 5 Series sedan all models including M5

This high quality custom billet water/methanol injection (WMI) cap includes an integrated check valve to let air in and prevent dangerous WMI vapor/fumes from getting out! Made in USA. Available here.