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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Standard relay configuration
Every component and layout choice was made to deliver stable
Note: Please email customer_service@spoolperformance
results in a higher flow rate through the injectors
and maintain a factory-like fit and finish
Spool Stage 3 Low Pressure Fuel Pump [S63 | F90 M5] E85 Fuel Pump Upgrade Standard relay configurationSpool 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
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