SKU: 44122153362

Burger Motorsports B9 S4 Water Injection Kit

Sale price$370.06 Regular price$411.18
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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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:
  1. Standard Shipping : 3-10 business days
  • 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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44122153362

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Jillian H
San Leandro, US
★★★★★ 5
Great product!
Color: Double Sided Tie-dye Pink, Size: Throw
We ordered the pink tie-dye colors which is gorgeous so we ordered 2 more in different colors. They are soft and the weight is perfect. A great blanket for bed or snuggling on the couch.
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Reviewed in the United States on April 28, 2026
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Lucygoosey
New York, US
★★★★★ 4
Lola look for a fraction of the price
Color: Cream White, Size: Twin, Color: Cream White, Size: Twin
I bought two of these blankets in twin size to protect our leather chairs from our cats' claws, after giving up on finding slip covers that looked good. I draped and pinned the blankets with a single large safety pin, and they pretty much stay put whereas other throws I've tried this with have not. I think it's because they're not too heavy or too light. I do need to adjust them from time to time after people have sat in them. I heard these blankets are a good substitute for the pricey Lola blankets, known for their bubbly texture. I haven't seen a Lola blanket, but these are certainly much less expensive and very nice, so soft and with the same bubbly look. The bubbles are not quite as pronounced as I'd hoped, but I have not tried following the manufacturer's suggestion of fluffing up by tumble-drying on cool with tennis balls. I'm happy with this purchase, and my cats are too.
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Reviewed in the United States on February 7, 2026
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Tracy
Omaha, US
★★★★★ 5
Luxury at its finest. Must have. You will not be disappointed!
Size: Twin(60" x 80"), Color: Tie-dye Coffee
This blanket is a must have! I purchased several to compare and decide which one was going to make the cut. There was absolutely no competition. This is the softest, most luxurious, coziest and authentic looking blanket. I told my sweetheart THIS is the cozy time blanket! Luxury at its finest! I have real vintage for jackets that are extremely luxurious and this rivals them with a clear conscience!Absolutely stunning and extremely high class feeling and appearing. Also semi-heavy and very warm . Upgrade to any space
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Reviewed in the United States on May 20, 2026
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Kimberly D Paige
Boise, US
★★★★★ 5
Great blanket
Size: Twin(60" x 80"), Color: Tie-dye Coffee
Luxurious look. It’s a soft faux fur on the top, with a beautiful and subtle variegated pattern that adds to the lifelike appearance. The inside of the blanket has a velvet feel and creates a cozy vibe. The blanket is a great size. It is well made with quality material with just the right amount of weight to help me relax and fall asleep.
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Reviewed in the United States on May 20, 2026
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Gladys White
Lake Worth, US
★★★★★ 5
Love it so much I got a second one
Size: Throw(51" x 63"), Color: Navy Blue, Size: Throw(51" x 63"), Color: Navy Blue
This blanket is perfect for snuggling. The throw size is perfect for napping or relaxing. It’s unbelievably soft. Faux rabbit fur is how I’d describe it. The color is perfect and consistent. It’s got great weight to it. It definitely has the power of nap inducement. My kids keep trying to steal it when they watch movies with me so I got a second because I’m not sharing! I’d get it in king size if they made it that big. Quality is amazing. It’s basically double layered with the top being the fluffy, bubble side and the other is a smooth yet still soft underside. It’s worth every penny and if you see it on a deal - DO NOT WAIT! Pull it out of the box and prepare to luxuriate beneath this deliciously soft and warm blanket. You DO need it!
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Reviewed in the United States on February 17, 2026

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