Air and Fuel› Fuel Injection Systems and Components - Electronic

Burger Motorsports

JB4 Water/Methanol Injection Kit for Gen 2 B48/B58

$898.00

SKU: BMSJB4WMI-B58

In Stock
In Stock
Ships by Jul 30
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Burger Motorsports JB4 Water/Methanol Injection (WMI) Kit is designed for Gen 2 B48 and B58 BMW engines. This system integrates with the JB4 tuning system for precise mapping based on various engine data points, ensuring safe and progressive boost mapping. If WMI flow drops, the JB4 will reduce performance to prevent detonation.

The kit includes a 3.5-gallon stealth tank that fits in the trunk cavity of compatible BMW models. It features an Aquatec pump, a BMS BM10 super atomizing nozzle (10 GPH), a high-speed solenoid, steel braided lines, and all necessary hardware for installation. An optional billet throttle body adapter is available for a quick, plug-and-play installation of dual nozzles.

Fitment

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Specifications

BrandBurger Motorsports
Part NumberBMSJB4WMI-B58
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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