Spool FX-170 Upgraded High Pressure Fuel Pump Kit [N20/N26]

Spool FX-170 Upgraded High-Pressure Fuel Pump Kit – N20/N26

What is the FX-170?

The Spool FX-170 is a high-performance upgraded high-pressure fuel pump (HPFP) designed to significantly enhance fueling capacity for the BMW N20/N26 engines. Featuring a larger bore size, it delivers 50% more flow than the stock pump, making it an essential upgrade for high-boost applications, ethanol blends, and big turbo setups.

The FX-170 is fully E85 compatible and plug-and-play, requiring no cutting or splicing for installation. Additionally, it operates at 25% higher pressure than stock, allowing injectors to deliver more fuel per injection cycle, maximizing power and efficiency.

Why Do You Need It?

The factory HPFP on the N20/N26 is a major fueling bottleneck when tuning for higher horsepower or ethanol blends. Upgrading to the FX-170 provides:
✔ 50% More Flow, increasing fueling limits for bigger turbos and higher ethanol concentrations
✔ Higher Injector Output, ensuring consistent fuel delivery under extreme conditions
✔ E85 Compatibility, unlocking greater power potential with ethanol tuning

Whether you're running full E85, a hybrid turbo, or an aggressive tune, the FX-170 ensures your fuel system keeps up with your performance goals.

What’s Included in the Kit?

• 1x FX-170 Upgraded High-Pressure Fuel Pump
• Upgraded Fuel Lines & Complete Installation Hardware

Optional Add-Ons:

• Ethanol Content Monitor Kit with mobile app support
• Bosch-Spec 10-Micron High-Flow Fuel Filter

Spool 10-Micron Fuel Filter (Optional, Recommended)

The Spool 10-micron fuel filter provides industry-leading filtration without restricting flow or causing pressure drop in the low-side fuel system. It protects the high-pressure fuel pump and injectors from debris, extending their lifespan and ensuring consistent performance.

Are Tune Changes Required?

✔ Yes, calibration changes are required before starting the vehicle with the upgraded pump installed.
✔ Spool Performance provides calibration details to your tuner and can help connect you with experienced tuners.
✔ Custom tuning is necessary to optimize fuel delivery for your setup and ambient conditions.

Note: Spool Performance is a hardware manufacturer and does not provide custom tuning services but offers technical support for tuning-related inquiries.

Low-Pressure Fuel Pump (LPFP) Upgrade – Essential for HPFP Longevity

A properly upgraded low-pressure fuel system is critical for ensuring optimal performance and durability of the high-pressure fuel pump and injectors in direct injection (DI) systems. Inadequate LPFP supply can cause premature wear or failure of the HPFP due to insufficient fuel lubrication.

Damage caused by low-pressure fuel starvation is detectable and will void warranty coverage. Ensure your fuel system is properly upgraded when increasing power levels.