Spool Performance AMG S63 [M177] FX-350 Upgraded High Pressure Pump Kit

Unleash the full potential of your Mercedes-AMG S63 M177 engine with the Spool Performance FX-350 High-Pressure Fuel Pump System. Designed for high-performance builds and enthusiasts looking to push the limits of their engine, the FX-350 is a revolutionary upgrade that provides the increased pressure and flow necessary for fueling big turbos, high ethanol content blends, and pushing horsepower beyond stock limits. With 90% more flow than the stock pump, the FX-350 ensures your engine receives a steady supply of fuel, enabling more power and efficiency.

Key Features:

• Enhanced Pressure and Flow:
  The FX-350 operates at an impressive 35Mpa (compared to the 25Mpa of the FX-200), delivering significantly higher flow rates to the injectors. This increase ensures that the injectors flow 40% more fuel before reaching their max limit, supporting bigger turbos and more aggressive tunes for the AMG M177 engine.

• Improved Fuel Atomization:
  With higher fuel pressure, the FX-350 aids in better atomization of the fuel, improving combustion efficiency. In direct-injected engines, finer fuel droplets lead to a more thorough fuel-air mix, resulting in increased power output, improved fuel economy, and reduced emissions.

• 90% More Flow:
  Compared to the stock M177 high-pressure fuel pump, the FX-350 increases fuel flow by 90%, helping to break the limitations of stock fueling systems. This makes it ideal for builds running larger turbos or higher ethanol blends (E85 and beyond).

• Complete Kit for Optimal Performance:
  The FX-350 High-Pressure Fuel Pump System comes complete with everything you need for an upgrade:

  • 2 x FX-350 upgraded high-pressure fuel pumps

  • Bosch spec 10-micron high-flow fuel filter to ensure clean, debris-free fuel delivery

  • Upgraded fuel lines (black nylon-coated, braided steel PTFE core, 100% E85 compatible)

  • Spool 10-micron filter unit for enhanced filtration without pressure drop

  • Ethanol Content Monitor kit with mobile app for real-time monitoring of fuel ethanol content and temperature

• Ethanol Content Monitoring:
  Stay in control of your fuel system with the Spool Ethanol Content Analyzer (ECA), which uses Bluetooth 4.0 technology to send real-time ethanol percentage and fuel temperature data to your mobile device. This ensures you have accurate information on the ethanol content in your fuel mix, which is essential for optimizing your tune and ensuring engine safety.

• Tune Calibration Required:
  To fully take advantage of the FX-350 High-Pressure Fuel Pump, calibration adjustments are required. It is crucial to apply these changes prior to starting your vehicle after installation to avoid damage and preserve warranty. Spool Performance provides calibration details to your tuner and can assist in connecting you with professionals who are experienced with this upgrade.

Why You Need It:

As you push the boundaries of your Mercedes-AMG S63 M177 engine, the stock high-pressure fuel pump simply cannot keep up with the demands of high horsepower builds, especially when using E85 or other high ethanol-content fuels. The FX-350 solves this issue by significantly increasing fuel flow and pressure, ensuring that your engine receives the fuel it needs to reach its full potential without compromising performance or reliability.

What’s Included:

• 2 x FX-350 upgraded high-pressure fuel pumps

• 1 x Bosch spec 10-micron high-flow fuel filter

• Upgraded E85-compatible fuel lines

• 1 x Spool 10-micron filter unit

• 1 x Spool Ethanol Content Monitor Kit with mobile app

• Complete installation hardware

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.