BMW F90 M5 S63 Stage 3 Low Pressure Fuel Pump

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 fuelling, regardless of fuel type.

Key Features:

• Boost-activated Twin Pump Design: A second pump engages during boost for seamless high-flow fuelling.

• 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.

Kit Contents:

1. Dual Pump Bucket Assembly

2. Secondary Fuel Pump Activation Harness

3. Boost-activated Switch

4. Boost Reference Adapter

5. Hardware Pack