Spool Stage 3 Low Pressure Fuel Pump [S63 | F90 M5]

Spool Performance is excited to introduce our Stage 3 Low-Pressure Fuel Pump Kit for the BMW S63 platform. Designed to eliminate low-side fueling limitations, this kit includes everything needed to add a secondary boost-activated low-pressure pump, ensuring consistent fuel delivery for high-horsepower builds.

With high-pressure fuel pumps now supporting greater Direct Injection (DI) fueling, the stock low-pressure electric pumps have become a bottleneck when pushing for maximum performance, especially with E85 fuel. Our Stage 3 Low-Pressure Pump Kit addresses this challenge by featuring a twin-pump configuration. A secondary pump is activated during boost onset, doubling the flow capacity compared to the stock setup and supporting over 1200whp of low-pressure fueling, regardless of fuel type.

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Key Features:

• Boost-activated Twin Pump Design: A second pump engages during boost for seamless high-flow fueling.
• Supports High Power: Designed to handle 1200+whp, perfect for E85 and other high-demand setups.
• Plug-and-Play Installation: Comes with all necessary components for straightforward integration.

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Kit Contents:

1. Dual Pump Bucket Assembly
2. Secondary Fuel Pump Activation Harness
3. Boost-activated Switch
4. Boost Reference Adapter
5. Hardware Pack