Spool FX-170 Upgraded HPFP Kit [M276]

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This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

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Spool FX-170 HPFP Kit | AMG M276

The Spool Performance FX-170 is a high-pressure fuel pump (HPFP) upgrade for Mercedes-Benz M276 engines. This solution is designed to remove the limitations of the standard fuel system, enabling higher power outputs and ethanol blends in tuned applications.

What is the FX-170?

The FX-170 is an upgraded HPFP with a larger piston diameter than the standard pump. This enables approximately +50% greater fuel flow.

• Approx. +50% flow compared to stock
• Full E85 compatibility
• Plug & Play installation without modifications
• Allows for greater fuel delivery

Additional capacity enables:

• Higher ethanol blends
• Larger turbochargers
• Wider tuning possibilities

Why is an upgrade necessary?

The M276 engine's stock HPFP is a significant limitation in tuning:

• Fuel delivery is insufficient for high power levels
• The use of ethanol blends remains limited

The FX-170:

• Significantly increases fuel system capacity
• Expands the platform's fuel limits
• Enables more effective and safer tuning

Package contents

• 1 x FX-170 high-pressure fuel pump
• Upgraded fuel lines + installation hardware
• Bosch 10-micron high-flow fuel filter
• Ethanol content monitoring system with mobile app

Spool 10-micron filter

• Excellent filtration performance without significant pressure drop
• Protects the pump and injectors from contaminants
• Optimized for the M276 platform

Spool Ethanol Content Monitor

• Real-time monitoring of ethanol content and fuel temperature
• BLE 4.0 connection to mobile app
• Enables precise fuel mixture control
• Full E85 compatibility for fuel lines

Software Requirements

• Requires software modifications before commissioning
• Calibration must be performed before using the pump

Spool:

• Provides the necessary calibration data to the tuner
• Helps find an experienced tuner if needed

Note: Spool does not offer ready-made custom tunes

Important Note: LPFP

The low-pressure fuel system is critical:

• Insufficient supply can damage the pump and injectors
• HPFP lubrication relies on fuel flow
• Lack of fuel can lead to wear and failure

Recommendation: ensure adequate low-pressure side upgrade