Spool Performance G63 / G550 AMG [M177] FX-200 Upgraded High Pressure Pump Kit

The Spool Performance FX-200 is a high-pressure fuel pump designed to deliver significantly more fuel flow than the stock pump on the M177 engines. With an 80% increase in flow capacity, the FX-200 allows your engine to run higher ethanol concentrations and support larger turbos, making it an essential upgrade for anyone looking to maximize performance on their AMG G63 or G550.

What is the FX-200?

The FX-200 boasts a larger bore size than the stock pump, resulting in approximately 80% more fuel flow. This increased flow capacity makes it possible to handle higher ethanol concentrations, fueling larger turbos, and running higher pressures—up to 240 bar. These higher pressures improve fuel injector output and reduce injection times, enabling better engine performance.

• E85 Compatibility: The FX-200 is 100% compatible with E85 fuel, ensuring it meets the demands of high-performance and ethanol-blended fuel setups.

• Plug-and-Play Design: Installation is seamless with no cutting or splicing required, ensuring a straightforward and hassle-free upgrade.

Why Do You Need the FX-200?

The stock high-pressure fuel pump on the M177 engine lacks the capacity to support the demands of high-output tuning. The FX-200 solves this limitation by providing 80% more fuel flow, allowing for the use of larger turbos and higher ethanol blends, thereby increasing the engine's potential for higher horsepower and improved performance.

What’s Included in the Kit?

• 2 x FX-200 Upgraded High-Pressure Fuel Pumps
• 1 x Ethanol Content Monitor (optional, with mobile app integration)
• 1 x Bosch Spec 10-Micron High-Flow Fuel Filter
• Upgraded Fuel Lines and all necessary installation hardware

Additional Components:

• Spool 10-Micron Filter Unit: Ensuring the best filtration on the market, this filter protects high-pressure pumps and injectors from debris without causing pressure drops in the low-side fuel system.

• Spool Ethanol Content Monitor: The ethanol content monitor provides a digital readout of in-tank ethanol content and fuel temperature. Compatible with the Spool Ethanol Content Analyzer App via BLE 4.0 technology, it offers real-time data and is 100% E85 compatible.

Are Tune Changes Required?

Yes, the FX-200 requires tuning adjustments for optimal performance. These changes must be applied before starting the engine with the upgraded pumps to prevent potential damage and warranty voiding. Spool Performance offers calibration details and can assist in connecting you with experienced tuners to maximize the potential of your upgraded fuel system.

Low-Pressure Fuel Pump Upgrade:

Proper low-pressure fueling is vital for the longevity and performance of high-pressure pumps in a Direct Injection (DI) system. Insufficient low-pressure fueling can cause damage to the pump piston and bore, resulting in voided warranties. Ensure your fuel system build includes the necessary low-pressure upgrades to avoid these issues.

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.