Performance High-Pressure Fuel Pump

The Spool Performance SP-FX-150-B58 high-pressure fuel pump is engineered to significantly boost the performance of compatible BMW vehicles. Designed by Spool Performance, this pump offers a substantial increase in fuel flow, providing 50% more flow than stock units (Stock @ .954 cc per rev vs. FX-150 @ 1.43 cc per rev). This enhancement is crucial for supporting larger turbochargers and allowing for the use of higher ethanol concentration blends, such as E85, thereby unlocking increased performance potential. The SP-FX-150-B58 features a plug-and-play design, simplifying the installation process. Its compatibility with E85 fuel makes it a versatile option for enthusiasts looking to leverage alternative fuel sources for more power. The pump is backed by a lifetime replacement warranty from Spool Performance, offering peace of mind and long-term reliability. An important note regarding installation: the upgraded pump requires calibration changes to be made *before* installation to prevent potential damage and voiding of the warranty. It is also not for sale or use in California on any pollution-controlled vehicle, as per the California Air Resources Board (CARB) regulations. This high-pressure fuel pump is specifically designed for BMW models equipped with the B58 3.0L engine, including various M240i, 340i, and 440i variants across F22, F23, F30, F32, F33, F34, and F36 chassis codes.