Burger Motorsports B9 S4 Water Injection Kit
SKU: 44122153362

Burger Motorsports B9 S4 Water Injection Kit

Sale price$370.06 Regular price$411.18
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Description

Burger Motorsports B9 S4 Water Injection KitWater 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. The Audi B9 S4 BMS WMI kit integrates to the JB4 tuning system allowing for precise

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. The Audi B9 S4 BMS WMI kit integrates 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 detonation. Boost is held low until WMI is properly flowing to avoid tip in knock common with non-integrated WMI setups. In addition WMI can be activated or disabled right from the JB4 Mobile app , will automatically disengage during traction control or safety map situations, and WMI flow data can be displayed via your JB4 Mobile logging device. 

The BMS WMI kit includes a high quality Aquatec WMI pump made to our specifications, high speed solenoid with leak-free compression fittings, a WMI filter, and all required wiring and mounting hardware. For the Audi B9 S4 You can select from our lower cost 1 gallon clear tank for a custom mount or our universal 2 gallon integrated tank.

For the Audi B9 S4 we also offer a unique direct fit CNC machined nozzle adapter allowing quick and easy installation of the suggested dual BM5 nozzles. The adapter eliminates the need to replace your otherwise sturdy factory chargepipe for nozzle mounting.

Dual BM5 is the recommended nozzles for Audi B9 S4 BMW engines with factory turbo.

What's inside our methanol injection nozzles?

Audi S4 WMI Nozzle Adapter

This CNC machined plug and play adapter allows you to mount single or dual BMS WMI nozzles WITHOUT the expense and headache of removing and drilling your factory chargepipe. Shaves a ton of time off the Audi S4 WMI install and best of all is fully reversible. We suggest the BM10 nozzle for most S4 applications. Nozzles not included. Made in the USA.

1 gal. UNIVERSAL TANK

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

 

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

CAP UPGRADE

Optional Upgraded Billet WMI tank cap w/safety check valve

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

Applications
• BMS 1 gallon tank
 BMS 2 gallon universal tank
 BMS 2 & 3 gallon stealth tank


INSTALL GUIDE

Download Install Guide

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 44122153362

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YM
Pawtucket, US
★★★★★ 1
Caused pooping spree
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
Serenity Kids food pouches have caused my baby to have multiple pooping sprees. I bought the products due to the rave reviews and organic ingredients. But there are way too many ingredients in one pouch for a baby, and while everything looks clean, not everything is good for an immature digestive system. For example, apple cider vinegar might have been the trigger of one pooping spree. But there are so many ingredients in these pouches, making it hard to narrow it down. What has happened is that these and other Serenity Kids pouches have caused my baby to poop 4-5 times a day, at times 2 days in a row. It's awful to see the little one with a screaming red bottom and to hear her cry at the top of her lungs on the diaper changing station. Serenity Kids should be ashamed. For a company marketing itself as offering healthy foods to babies, it has failed spectacularly.
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Reviewed in the United States on March 18, 2026
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Blondie
Whiting, US
★★★★★ 5
Funny
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
Disclaimer: my review is nothing against the brand, I love Serenity Kids! I have been using the main starter pack with my (now 9MO) since he was 6MO. He has loved them all from the organic roots to the bison but dang, this "upgraded" pack threw him for a loop. Gagged at the beef pot roast. Probably won't be purchasing this variety pack again LOL
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Reviewed in the United States on November 9, 2025
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S+B
Houston, US
★★★★★ 5
Great for a crunchy moms
Flavor Name: Bone Broth Variety Pack, Size: 3.5 Ounce (Pack of 6)
These are some of my favorite puree pouches for my baby to eat. Simple ingredients and everything is organic. Usually no more than For possibly five ingredients.
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Reviewed in the United States on November 21, 2025
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C.L.
Massapequa, US
★★★★★ 5
Excellent privacy shade.
Color: Coal Black
This delivered on exactly what it promises. So happy with the quality for the value. The shades are a fabric, nylon like, that are attached with a pocket on one end and velcro that adheres around the bar on the other. This was incredibly easy and straightforward to put together. Every piece was clearly labeled, coordinated with the instruction sheet, and fit perfectly. Honestly, I wasn’t planning to leave a review but I was so impressed by how clearly labeled and well explained the instructions were that I felt compelled to note it. Especially for anyone who doesn’t like putting things together, or is used to subpar instructions, this is leagues above the rest. It’s such a simple build anyway, but after buying so many things that barely fit as they should, this stands out. It is lightweight and easy to move. Offers privacy when opened, then can be folded out of the way. It looks exactly as pictured. No complaints, it’s a solid item and worth the price.
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Reviewed in the United States on April 9, 2026
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Courtney A.
Pawtucket, US
★★★★★ 5
Decent quality for the price
Color: Grey
Decent quality for the price. Other privacy screens were extremely out of my budget, but this looks and works just fine- I just needed something simple to place behind my couch to hide some clutter. It took me about a half hour to assemble, but it was easy enough. It might be due to my carpeting, but I don't trust that the screen would be stable enough to stand freely without falling. Thankfully my plan all along was to wedge the screen between the couch and a box of clutter anyway, so for me it works as l'd planned!
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Reviewed in the United States on April 10, 2026

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