Spool AMG M178 FX-150 HPFP Upgrade

What is the FX-150?

The FX-150 is an upgraded high-pressure fuel pump. The pump features a bigger bore size than stock which translates into roughly 50% more flow when compared to stock. The pump is completely E85 compatible and fully plug-and-play with no cutting or splicing required. The added flow will let you run much higher ethanol concentrations and also allow fueling for bigger turbos.

Why do you need it?

The stock HPFP on the M178 Motors is severely limited in capacity when trying to tune and raise the motor's output. The FX-150 adds 50% more flow to the equation, raising the fueling limits on the platform and helping you run bigger turbos and/or higher ethanol concentration blends.

What does the kit include?

2 x FX-150 upgraded high-pressure fuel pumps

1 x Ethanol Content Monitor kit with Mobile and Watch apps

1 x Bosch spec 10-micron high-flow Fuel Filter

Upgraded Fuel lines and all necessary installation hardware included

Spool 10-micron filter unit

Our 10-micron filter unit boasts the best filtration available on the M178 market without any noticeable pressure drop in the low-side fuel system. The filter unit helps keep the high-pressure pump and injectors safe by protecting them against debris and is highly recommended.

Spool Ethanol Content Monitor

The spool ECA kit for the M178 features a digital readout of in-tank ethanol content and fuel temperature. It includes our mobile SPOOL Ethanol content analyzer app, and readouts are delivered via BLE 4.0 low-energy technology. BLE4.0 allows you to use your regular Bluetooth devices on your mobile devices while being connected to the SPOOL ECA module. The ECA module also has a 0-5V filtered output for flex-fuel implementation on the M178 platform if needed. Fuel lines used in the kit are black nylon-coated braided steel with PTFE cores that is 100% E85 compatible.

Are tune changes required?

The upgraded pumps do require calibration changes. It is important to apply these changes prior to starting the car with pumps installed to avoid any possible damage and void of warranty. 

Spool Performance can provide calibration details to your existing tuner and/or help you connect with established tuners who are experienced with these pumps. Custom tuning is required to get maximum output out of the upgraded pump setup for your specific vehicle setup and ambient conditions. Spool Performance is a hardware manufacturer and does not provide custom tunes, but can assist with questions your tuner may have.

Low-Pressure Fuel Pump Upgrade:

Proper low-pressure fueling is extremely important for the proper functioning and durability of the high-pressure pumps and injectors in a DI system. Inadequate low-pressure fueling can cause damage to the pump piston and bore as they are lubricated by controlled leakage of fuel. The resulting damage from low-pressure starvation is detectable and would be cause for voided warranties. Please make sure you plan out your fuel system build with proper low-pressure upgrades when necessary.