FSB JB4 WMI Water Injection Controller Mini Cooper (R55) and certainly restricting the amount

and certainly restricting the amount of power this N55 could have been making

Kit Only: Our kit allows for home assembly

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Upgrade your fueling system with the BMW B58TU / Supra High Pressure Fuel Pump (HPFP) for reliable performance and enhanced power

FSB JB4 WMI Water Injection Controller Mini Cooper (R55) and certainly restricting the amountFSB JB4 WMI Water Injection controller The BMS JB4 FSB Water Injection controller allows the JB4 to control your WMI pump and solenoid for dynamic progressive flow mapping. It also allows the JB4 to monitor pump current to overlay it with CANbus feedback for tuning parameters such as fuel trims and fuel pressure to provide a comprehensive flow based safety system. Made in the USA