Spool Performance Stage 3 Low Pressure Fuel Pump | AMG GT/GTS/GTC/GTR [M178] - SP-LS3-M178

The Spool Performance Stage 3 Low Pressure Fuel Pump (SP-LS3-M178) is a high-output fuel system engineered for high-performance builds on the Mercedes-AMG M178 platform, including the GT, GTS, GTC, and GTR. Designed to eliminate the fueling limitations of the stock low-pressure pump, this system delivers the flow and reliability needed for high horsepower and ethanol-based fuel applications.

Vehicle Fitment:

• Mercedes-AMG GT (2015–2024)
• Mercedes-AMG GTS (2015–2020)
• Mercedes-AMG GTC (2018–2024)
• Mercedes-AMG GTR (2017–2021)

Compatible with vehicles equipped with the M178 4.0L Biturbo V8 engine.

Key Features:

• Twin-Pump Configuration:
  One pump runs continuously while the second engages under boost, ensuring responsive and consistent fueling at all power levels.

• Supports 1200+ WHP:
  Engineered to support extreme power goals regardless of fuel type—gasoline, race fuel, or full E85.

• Solves Factory Bottlenecks:
  Upgraded LPFP system complements high-flow HPFP upgrades, addressing the common fuel delivery restriction on tuned M178 engines.

• Seamless Integration:
  Designed as a plug-and-play solution with no permanent modifications required. All necessary wiring, lines, and fittings are included.

• E85-Compatible Materials:
  Built with ethanol-safe components for long-term durability and performance in flex fuel applications.

Why Upgrade to Stage 3 LPFP?

As factory high-pressure fuel pump (HPFP) options have evolved to support higher DI demands, the OEM low-pressure fuel pump has become the limiting factor—especially when running larger turbos and ethanol blends. The Stage 3 LPFP overcomes this restriction by providing nearly twice the flow of the stock pump, ensuring the high-pressure system is never starved for fuel.

This upgrade is ideal for:

• Full E85 builds
• High-boost turbo setups
• Race-ready street cars targeting 1000+ WHP
• Anyone using Spool’s FX-series HPFP kits

Take full control of your fuel delivery and unlock your M178-powered AMG’s full performance potential with the Spool Performance Stage 3 Low Pressure Fuel Pump.

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.