Spool FX-170 BMW N55 Upgraded High Pressure Fuel Pump

The Spool Performance FX-170 High-Pressure Fuel Pump is a significant upgrade for BMW N55 35i Single Turbo engines. Designed to provide approximately 50% more fuel flow than the stock pump, this plug-and-play solution is fully compatible with E85 and requires no cutting or splicing. The increased fuel flow allows you to run higher ethanol concentrations and support larger turbos, making it an essential upgrade for those pushing the limits of their N55 engine.

Key Features:

• 50% Increased Fuel Flow: Enhanced bore size delivers 50% more flow compared to stock, allowing for higher ethanol blends and fueling larger turbos.
• E85 Compatibility: Supports ethanol blends for performance tuning.
• Plug-and-Play Installation: No cutting, splicing, or modifications required.

Why You Need It: The stock HPFP on the N55 engine is limited in capacity, restricting the potential output when tuning for more power. The FX-170 significantly raises the fueling limits, enabling you to safely run bigger turbos or higher ethanol blends, maximizing performance on the N55 platform.

Tune Changes Required: Upgrading to the FX-170 requires calibration adjustments. It's crucial to apply these changes before running the vehicle with the upgraded pump to avoid potential damage and warranty voiding. Spool Performance can provide calibration details to your tuner or connect you with tuners experienced with these pumps. Custom tuning is essential to get the maximum output from this upgraded setup based on your vehicle's configuration.

Low-Pressure Fuel Pump Upgrade: For optimal performance and durability, proper low-pressure fueling is critical. Insufficient low-pressure fuel delivery can damage the high-pressure pump and injectors, which are lubricated by fuel leakage. Spool Performance recommends planning your fuel system upgrade with the appropriate low-pressure upgrades to prevent damage and ensure longevity.

About Spool Performance: Spool Performance delivers cutting-edge fuel system solutions designed for BMW engines, specializing in high-performance, reliable upgrades to meet the needs of enthusiasts pushing their vehicles to the limits.

Note: 'New' merchandise may be returned for exchange or refund within 15 days from the date of shipment. 'New' merchandise must be unused and free from installation or mounting damage. Installation or modification of parts waives your right to returns, refunds, or exchanges.