{"product_id":"jb4-water-methanol-injection-kit-for-gen-2-b48-b58","title":"JB4 Water\/Methanol Injection Kit for Gen 2 B48\/B58","description":"The Burger Motorsports JB4 Water\/Methanol Injection (WMI) Kit is engineered to significantly enhance power output on pump gas for Gen 2 B48 and B58 BMW engines. By injecting a water\/methanol mixture, this system provides cooling benefits similar to running race gas or E85, and can even allow for greater power gains than those fuels alone. For drivers without easy E85 access, WMI offers substantial power increases over pump gas, while for those already using E85, it provides valuable charge air cooling and fuel volume benefits.\n\nA key feature of this kit is its seamless integration with the JB4 tuning system. The BMS WMI kit uses the JB4's access to real-time data such as boost, throttle position, engine speed, intake temperature, and gear selection to precisely control WMI flow. This allows for safe, progressive boost mapping that avoids common issues like tip-in knock. The system also provides a pump flow feedback signal to the JB4, enabling it to automatically reduce performance if tank levels are low or flow is interrupted, thus preventing detonation.\n\nThe kit includes a custom-designed 3.5-gallon stealth tank that fits discreetly into the left side trunk cavity of G20\/G22\/G80\/G82 BMW vehicles. The tank features a rear sump for consistent pump performance and comes with a vented cap, though an optional upgraded billet cap with a check valve is also available. Mounting the nozzle typically requires an 1\/8\" NPT port or an optional plug-and-play throttle body adapter designed for Gen 2 B58 engines, allowing for quick installation of dual nozzles without replacing the factory charge pipe.\n\nThis WMI kit is compatible with the following BMW models: 2020-2023 B58 G20 BMW M340i (including xDrive) and 2019+ B48 G20 BMW 330i\/330e (including xDrive). It also fits 2021+ B58 G22 BMW M440i (including xDrive, requires modification) and 2021+ B48 G22 BMW 430i (including xDrive).","brand":"Burger Motorsports","offers":[{"title":"Default Title","offer_id":52687320482104,"sku":"BMSJB4WMI-B58","price":898.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660190972.webp?v=1784882626","url":"https:\/\/store.motormia.co\/products\/jb4-water-methanol-injection-kit-for-gen-2-b48-b58","provider":"MOTORMIA","version":"1.0","type":"link"}