FX-170 High Pressure Fuel Pump

The Spool Performance FX-170 is a direct-fit, upgraded high-pressure fuel pump designed to significantly increase fueling capacity for BMW B48 engines. Featuring a larger bore diameter than the stock unit, this pump provides a substantial increase in fuel flow, approximately 50% more than OEM. It is fully compatible with E85 fuel, enabling higher ethanol concentrations for increased performance. This upgrade is crucial for B48 engine owners seeking to push their performance limits. The stock high-pressure fuel pump (HPFP) is often a bottleneck when tuning for increased power. The FX-170 directly addresses this limitation by providing the necessary fuel volume and pressure. The kit includes the FX-170 pump, upgraded fuel lines, and all required installation hardware, ensuring a complete solution. Optional accessories like an ethanol content monitor kit with a mobile app and a Bosch-spec 10-micron high-flow fuel filter are available to further enhance monitoring and protection. It is important to note that the upgraded pump requires calibration changes. These changes must be applied before starting the engine with the new pump installed to prevent potential damage and voiding the warranty. Spool Performance can supply calibration details to your tuner or help you find experienced tuners. Custom tuning is mandatory to achieve maximum performance gains tailored to your specific vehicle setup and environmental conditions. Spool Performance specializes in hardware and does not provide custom tunes but offers support for your tuner.