Spool Performance AMG GT63 [M177] Spool FX-350 Upgraded High Pressure Pump Kit

Elevate your high-performance driving experience with the Spool Performance FX-350 High Pressure Pump Kit, designed specifically for the AMG GT63 M177. Building upon the success of the FX-200, the FX-350 sets a new standard with enhanced pressure and flow capabilities, making it the ultimate choice for tuning and maximizing engine output.

What is the FX-350?

The Spool Performance FX-350 is an advanced high-pressure fuel pump engineered to deliver superior performance and efficiency. This pump surpasses its predecessor, the FX-200, by offering increased fuel pressure and flow.

• Enhanced Pressure and Flow: Operating at an impressive 35Mpa, the FX-350 delivers significantly higher pressure than the FX-200’s 25Mpa. According to the equation Q=PxA (where Q is flow rate, P is pressure, and A is the area of the injector nozzles), this increased pressure results in a higher flow rate through the injectors. This means the FX-350 allows your injectors to flow 40% more fuel before reaching their maximum limits.
• Improved Fuel Atomization: The higher pressure from the FX-350 enhances fuel atomization, leading to finer fuel droplets in direct-injected engines. This results in more efficient combustion, increased power output, better fuel economy, and reduced emissions.

Why Do You Need It?

The stock high-pressure fuel pump (HPFP) on the M177 motors has limited capacity, which can be a bottleneck when tuning for higher performance. The FX-350 adds 90% more flow capacity, raising the fueling limits and enabling the use of larger turbos or higher ethanol concentration blends.

What Does the Kit Include?

• 2 x FX-350 Upgraded High-Pressure Fuel Pumps

• 1 x Ethanol Content Monitor Kit (if option selected) with Mobile App

• 1 x Bosch Spec 10-Micron High-Flow Fuel Filter

• Upgraded Fuel Lines and All Necessary Install Hardware

• Spool 10-Micron Filter Unit: Provides top-tier filtration without noticeable pressure drop, protecting the high-pressure pump and injectors from debris.

• Spool Ethanol Content Monitor

  • Features: Displays in-tank ethanol content and fuel temperature using the latest Bluetooth 4.0 low energy technology. Includes a free mobile app for real-time data and mix calculations.
  • Compatibility: Fuel lines are black nylon coated, braided steel PTFE core, and 100% E85 compatible.

Are Tune Changes Required?

Yes, calibration changes are necessary when installing the upgraded pumps. Ensure these changes are made before starting the car to avoid damage and voiding the warranty. Spool Performance provides calibration details to your existing tuner or can help connect you with experienced tuners. Custom tuning is required for optimal performance based on your specific setup and conditions. Spool Performance does not provide custom tunes but can assist with tuner-related queries.

Low Pressure Fuel Pump Upgrade

Proper low-pressure fueling is crucial for the durability and performance of high-pressure pumps and injectors in a direct injection system. Insufficient low-pressure fueling can cause damage to the pump piston and bore, potentially leading to voided warranties. Ensure your fuel system build includes appropriate low-pressure upgrades as needed.

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.