Burger Motorsports BMS 3.5 Gallon Stealth Water/Methanol Injection (WMI) Tank BMW G20 G22|G80 M3|G82 M4 2020-2023

$279.00 USD

Select your vehicle to confirm fit

Burger Motorsports – Engine Blocks & Rebuild Kits. Fits BMW M3 G80, BMW M340i G20, BMW M4 G82/G83.

  • Made to order — subject to stock confirmation.
  • Your card is authorized now, charged only once we confirm stock (usually within 24 hours).
  • Ships from our Wisconsin warehouse. Delivery 3–7 business days.
  • Ships direct from our supplier network — delivery depends on supplier availability.
  • Not sure it fits? Ask us →
This water/methanol injection (WMI) tank is a completely custom design that neatly hides away in the left side trunk cavity found in most G20 G22 & G80 M3 & G82 M4 BMW vehicles. The pump mounts directly to the back of the tank allowing for a quick, clean, and completely stealth installation. The bottom of the tank includes a rear sump allowing for consistent performance even as the tank drains. Includes 2-way vented black plastic cap and a compression pump feed fitting.

The nozzles are determined by the intended power and how many bungs your charge pipe has. The nozzles are 1/8" NPT and screw into bungs included on most aftermarket charge pipes. 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

  • Leaves trunk completely clear for full use of space
  • Super low profile design tucks neatly into the existing left side trunk cavity
  • 3.5 Gallon (13.25 liters) capacity
  • Available in transparent white for visually checking fluid levels and opaque black for a stealth appearance.
  • DDP 5800 pump mounts directly to the tank (pump sold separately)
  • Includes 2-way vented black plastic cap
  • Includes all mounting hardware

Vehicle Fitment:

  • 2021-Present S58 G80 BMW M3
  • 2021-Present S58 G80 BMW M3 Competition
  • 2021-Present S58 G82 BMW M4 (requires modification to fit)
  • 2021-Present S58 G82 BMW M4 Competition (requires modification to fit)
  • 2020-2023 G20 B58 BMW M340i including xDrive
  • 2021-Present G22 BMW M440i including xDrive (requires modification to fit)

What's included:

  • (1) Stealth Tank
  • (1) 2-way vented black plastic filler cap
  • (1) brass Compression Tube Fitting for 1/4" Tube OD x 1/4 NPT Male
  • (1) 18" of line
  • (2) Powder coated stainless lower bracket
  • (2) Rubber lower bracket grommets
  • (2) BMS custom bell washers
  • (2) Stainless Steel Flanged Button Head Screws M6 x 1 mm Thread, 8 mm Long
  • (1) Plastic upper bracket
  • (2) Self Tapping upper bracket screws 1/4" Size, 1-1/2" Long
  • (4) Pump Screws - Phillips Passivated Stainless 10-32 Thread, 1-1/4" Long
  • (2) 1/4 push male to female 90 Degrees to pump in
  • (1) Button Head Hex Drive Screw 18-8 Stainless M8 x 1.25 Thread Size, 15mm Long (bracket to chassis)
  • (1) Nylon lock nut - M8 x 1.25 mm Thread, 9.5 mm High (bracket to chassis)
  • (1) Button Head Hex Drive Screw Passivated 18-8 Stainless Steel, M10 x 1.50 mm Thread, 16mm Long (bracket to chassis)

For Instructions CLICK HERE

Proposition 65

âš WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Fitment: BMW M3 G80 (2021-2026); BMW M340i G20 (2020-2026); BMW M4 G82/G83 (2021-2026)

Please confirm year, trim and engine before ordering.

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