Spool FX-170 Upgraded High Pressure Pump Kit [S63 Gen 1]

Spool Performance FX-170 High-Pressure Fuel Pump Upgrade – Gen 1 S63

What is the FX-170?

The FX-170 is a high-performance upgraded high-pressure fuel pump (HPFP) designed for the Gen 1 S63 engine. Featuring a larger bore size than stock, it delivers 50% more fuel flow, significantly increasing fueling capacity for big turbo setups and high-boost applications. 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 flow more fuel per injection cycle, optimizing power and efficiency.

Why Do You Need It?

The factory HPFP on the Gen 1 S63 engine is severely limited when tuning for higher horsepower and ethanol blends. The FX-170 eliminates this bottleneck by:
✔ Boosting fuel flow by 50%, allowing for higher ethanol blends and big turbo support
✔ Increasing injector output, raising the fueling limits of the platform
✔ Enhancing stability and reliability, ensuring consistent fuel delivery under extreme performance conditions

For F10 M5 and F12/F13 M6 owners looking to maximize power, the FX-170 is a must-have upgrade.

What’s Included in the Kit?

• 2x FX-170 Upgraded High-Pressure Fuel Pumps
• 1x Optional Ethanol Content Monitor Kit with mobile app support
• 1x Bosch-Spec 10-Micron High-Flow Fuel Filter
• Upgraded Fuel Lines & Complete Installation Hardware

Spool 10-Micron Fuel Filter

This high-performance 10-micron filter offers the best filtration available for the Gen 1 S63 platform, ensuring optimal fuel flow with zero pressure drop. It protects HPFPs and injectors from debris, improving long-term reliability and performance.

Spool Ethanol Content Monitor

The Spool ECA (Ethanol Content Analyzer) Kit provides real-time ethanol content and fuel temperature monitoring via the Spool Performance mobile app. Using BLE 4.0 low-energy Bluetooth, it ensures seamless connectivity without interfering with other Bluetooth devices. The kit also includes braided steel nylon-core fuel lines, which are 100% E85 compatible for maximum durability.

Are Tune Changes Required?

Yes, calibration changes are required before starting the vehicle with the upgraded pumps installed.
Spool Performance provides calibration details for 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 inquiries.

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

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

Damage caused by low-pressure fuel starvation is detectable and will void warranty coverage. Ensure your fuel system is properly upgraded for high-power applications.