Burger Motorsports - BMS BMW G20-G22-G80 M3-G82 M4 13-Liter Water/Methanol Tank

🕵️‍♂️ Stealth WMI Tank – Hidden, High-Capacity Water/Methanol Tank for BMW G20, G22, G80 M3 & G82 M4!

Do you want to use your water/methanol kit safely without losing any trunk space? The BMS Stealth WMI Tank is a specially designed solution for G20 G22 and G80 M3 & G82 M4 BMW models, completely hidden on the left side of your trunk. Thanks to its ultra-low profile design, you can continue to use all your trunk space.

💧 High Capacity & Practical Design

With a capacity of 3.5 gallons (13.25 liters), it is suitable for long-term racing and performance use. The sump design at the bottom of the tank ensures uninterrupted pumping performance even when the liquid level drops. 

The DDP 5800 pump is mounted directly to the tank (pump sold separately). A 2-way vented black plastic cap and compression fitting are included in the box.

🛠️ Fully Stealth & Modular Installation

The tank fits perfectly into the left rear trunk compartment and leaves the trunk floor free thanks to its profile. All mounting hardware is included in the box; the tank does not divide your trunk and can be easily removed. Transparent white (for easy viewing of the liquid level) and black (for maximum privacy) options are available.

⚡ Ready for Professional WMI Installation

Fully compatible with BMS's “super atomizing” methanol nozzles. Using two small nozzles provides better atomization and distribution compared to a single large nozzle. You can select the flow rate of your nozzles based on your target horsepower and the outlet of the charge pipe.

An optional upgraded version with a blue billet, one-way valve lid is also available.

🔎 Wide Compatibility

BMW M3: 2021+ G80 M3 & M3 Competition

BMW M4: 2021+ G82 M4 & M4 Competition (some modifications may be required)

BMW 3 Series: 2020-2023 G20 B58 M340i (including xDrive)

BMW 4 Series: 2021+ G22 M440i (including xDrive, some modifications may be required)

📦 Box Contents

1x Stealth Tank

1x 2-way vented black plastic fill cap

1x Brass pipe connection fitting (1/4” pipe OD x 1/4 NPT male)

1x 45 cm hose

2x Dust-coated stainless steel lower brackets

2x Rubber lower bracket bushings

2x BMS special washers

2x Stainless steel flanged screws (M6 x 8 mm)

1x Plastic upper bracket

2x Self-tapping upper bracket screws (1/4”, 1.5” length)

4x Pump mounting screws

2x 1/4 push male-female 90° pump connection

1x M8 x 15 mm screw + 1x M8 nylon nut (bracket-chassis connection)

1x M10 x 16 mm screw (bracket-chassis connection)

⭐ Why BMS Stealth Tank?

100% hidden installation without dividing your trunk

High capacity: 3.5 gallons (13.25L)

Direct compatibility with DDP 5800 pump

Transparent or black tank depending on your choice

Easy installation and fully recyclable system

Rear sump design for professional fluid flow

💡 Performance, Cleanliness, and Ease of Use All in One!

The reliable and practical tank solution your WMI kit needs: BMS Stealth Tank! Place your order and keep your trunk organized without compromising your vehicle's performance.