Spool Performance

Stage 3 Low-Pressure Fuel Pump Kit

$749.00

SKU: SP-F90M5-LPFPDIY

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Spool Performance Stage 3 Low-Pressure Fuel Pump DIY Kit is a comprehensive fuel system enhancement for the BMW F90 M5 S63 platform, targeting enthusiasts seeking a cost-effective, hands-on solution. As modern high-pressure fuel pumps evolve to support greater Direct Injection fueling, the stock low-pressure electric pumps can become a limiting factor, particularly in high-performance applications utilizing E85 fuel. This DIY kit integrates a secondary, boost-activated low-pressure fuel pump, effectively doubling the stock system's fuel flow capacity. This upgrade ensures adequate fueling for builds pushing over 1200 wheel horsepower, regardless of the fuel type used. The kit includes a Secondary Fuel Pump Assembly, Secondary Fuel Pump Activation Harness, Boost-Activated Switch, Boost Reference Adapter, and a Hardware Pack. It is important to note that this kit requires a compatible high-pressure fuel system and tuning modifications to function optimally; pairing it with pumps like the Spool Performance FX350 is recommended for best results. Fitment is confirmed for the BMW F90 M5 (2018-2023), BMW F90 M5 Competition (2018-2023), and BMW F90 M5 CS (2021-2023).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSpool Performance
Part NumberSP-F90M5-LPFPDIY
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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