Stage 3 Low Pressure Fuel Pump

The Spool Performance Stage 3 Low Pressure Fuel Pump (LPFP) Kit is a comprehensive upgrade designed to address the fueling limitations of the factory low-pressure system in high-performance S58-powered BMWs. As power demands and the use of fuels like E85 increase, the OEM fuel pump can become a bottleneck. This kit provides a solution with significantly increased fuel flow and reliability. Engineered with a dual-pump configuration, the Stage 3 LPFP incorporates a secondary pump that activates under boost, precisely when needed during boost onset. This intelligent design ensures optimal fuel delivery without unnecessary strain, enabling the system to support over 1200 wheel horsepower, making it suitable for aggressive builds and E85 applications. The kit facilitates a plug-and-play installation with all necessary components included for seamless integration with your existing fuel system, complementing upgraded High Pressure Fuel Pump (HPFP) systems for a complete fuel delivery solution. Key features include the twin-pump configuration with a boost-activated secondary pump for continuous fuel flow under high load, support for over 1200 WHP on any fuel type including E85, and an intelligent control system that activates the secondary pump only when necessary to reduce strain and noise. The comprehensive kit ensures an OEM-like fit and finish, and it is optimized for Direct Injection (DI) systems. The kit contents include a dual pump bucket assembly, secondary fuel pump activation harness, boost-activated switch, and a complete hardware pack. This Stage 3 LPFP Kit is specifically designed for the following BMW models: G80 M3 (2021-2024), G82 M4 (2021-2024), G83 M4 Convertible (2021-2024), F97 X3M (2020-2022), and F98 X4M (2020-2022).