Spool Performance SL63 AMG [M177] Spool FX-170 Upgraded High Pressure Pump Kit

The Spool Performance FX-170 is a high-performance high-pressure fuel pump kit designed to elevate the fueling capabilities of your Mercedes-AMG SL63 [M177]. With its advanced features, the FX-170 is perfect for those looking to push their engine’s performance boundaries.

What is the FX-170?

The FX-170 is an upgraded high-pressure fuel pump that offers significant improvements over the stock pump. Key features include:

• 50% More Flow: The pump features a larger bore size compared to the stock, providing roughly 50% more flow. This enhancement supports higher ethanol concentrations and larger turbo setups.
• E85 Compatibility: Fully compatible with E85 fuel, ensuring versatility for various fuel blends.
• Plug and Play Installation: No cutting or splicing required for installation.

Why do you need it?

The stock HPFP on the M177 motors has limitations when it comes to supporting high-performance modifications. The FX-170 addresses these limitations by:

• Increasing Flow: Provides 50% more flow, allowing for higher power outputs and better performance with bigger turbos and higher ethanol blends.
• Raising Fueling Limits: Enhances the fuel system’s capacity to meet the demands of tuned and modified engines.

What does the kit include?

• 2 x FX-170 Upgraded High-Pressure Fuel Pumps
• 1 x Ethanol Content Monitor Kit (optional) with mobile app
• 1 x Bosch Spec 10-Micron High-Flow Fuel Filter
• Upgraded Fuel Lines and all necessary installation hardware

Additional Features:

• Spool 10-Micron Filter Unit: Provides top-tier filtration without causing noticeable pressure drops, protecting the high-pressure pump and injectors from debris.
• Spool Ethanol Content Monitor: Features a mobile app with a digital readout of in-tank ethanol content and fuel temperature. It uses BLE 4.0 technology for connectivity and includes a 0-5V filtered output for flex-fuel applications. The kit’s braided steel nylon core fuel lines are 100% E85 compatible.

Are tune changes required?

Yes, calibration changes are necessary for the upgraded pumps. It’s crucial to apply these changes before starting the vehicle to avoid damage and warranty issues. Spool Performance can provide calibration details or assist in connecting with experienced tuners. Custom tuning is essential to optimize performance based on your specific setup and conditions.

Low-Pressure Fuel Pump Upgrade:

Proper low-pressure fueling is critical for the durability and function of high-pressure pumps and injectors. Ensure your fuel system build includes appropriate low-pressure upgrades to avoid potential damage and warranty issues.