Spool Performance Stage 3 Low Pressure Fuel Pump | E550/CLS550/S550 [M278] - SP-LS3-M278

Spool Performance proudly presents the Stage 3 Low-Pressure Fuel Pump (LPFP) System for the Mercedes-AMG M278 platform. Designed for high-performance builds, this system upgrades the low-pressure fuel system to support higher horsepower outputs, especially on E85 fuel, where fueling demands are elevated. With our wireless ethanol analyzer kit and 10-micron filter unit, this solution ensures your fuel system can handle the demands of serious power increases.

Why You Need the Spool Stage 3 LPFP Upgrade:

Double the Flow for High Horsepower Builds
Stock low-pressure fuel pumps can become a limiting factor when chasing high horsepower, especially when running E85 or higher ethanol blends. The Spool Stage 3 LPFP kit features a twin-pump setup, with one pump activating during boost onset to provide almost double the flow of a stock pump. This upgrade ensures your system is capable of handling over 1200whp of low-pressure fueling power, making it a must-have for high-performance builds.

Supporting E85 and High-Flow Fuels
Designed to work with E85 fuel, the Spool Stage 3 LPFP system ensures that your Mercedes M278 platform can run on higher ethanol concentrations without fuel starvation, even under full boost. Whether you're aiming for higher horsepower numbers or optimizing your fueling for track use, this upgrade will handle it with ease.

Wireless Ethanol Analyzer for Precision
Included in the kit is our Spool Wireless Ethanol Analyzer Kit, which gives you real-time readouts of the ethanol content in your fuel, ensuring the proper ethanol mix for peak engine performance. This system delivers accurate data through Bluetooth technology, allowing you to monitor ethanol content and fuel temperature via a mobile app. The wireless technology makes it convenient to access ethanol content information without the hassle of physical connections.

10 Micron Filter for Cleaner Fuel
The Spool 10-micron filter unit is included in the kit to provide superior filtration and protect your high-pressure fuel system from contaminants. This filter unit is engineered to handle the demands of high-flow fuel systems without introducing pressure drops, ensuring clean and reliable fueling for your engine. It helps protect your fuel injectors and high-pressure pumps, keeping your system running smoothly and preventing premature wear from debris.

Key Features and Benefits:

• Twin-pump setup for double the flow of stock pumps, supporting over 1200whp

• Designed to support E85 fuel and high-flow fuels without fuel starvation

• Wireless ethanol analyzer allows for real-time monitoring of ethanol content and fuel temperature via mobile app

• 10-micron fuel filter provides high-performance filtration, keeping your fuel system free of contaminants

• Plug-and-play design for easy installation into your M278 platform

• Ideal for high horsepower builds and track-focused applications

Optimize Your Fueling System

For serious performance enthusiasts, the Spool Stage 3 LPFP Upgrade with Wireless Ethanol Analyzer Kit and 10 Micron Filter Unit is the perfect solution for running high ethanol concentrations and pushing your M278-powered Mercedes to its limits. With improved low-pressure fueling, you’ll ensure that your system can support the horsepower you crave without compromising reliability or fuel efficiency.

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.

The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.