Spool Stage 3 LPFP Kit AMG GT, GTS, GTC, GTR [M178]

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This condition applies to the following product categories:

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• ECE-approved Downpipes

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Spool Stage 3 LPFP Kit | AMG GT, GTS, GTC, GTR (M178)

The Spool Performance Stage 3 LPFP is the production version of the low-pressure fuel pump (LPFP) upgrade for the Mercedes-AMG M178 engine. The system is designed to remove low-pressure side limitations, especially with high power and E85 use.

Product Description

As high-pressure fuel pumps (HPFP) become more efficient, the low-pressure electric fuel pump often becomes a critical bottleneck. The Stage 3 LPFP solves this with a dual-pump design, ensuring sufficient fuel delivery even in demanding conditions.

• Production version, ready-made solution
• Dual pump system
• Secondary pump activates according to boost pressure
• Nearly 2x flow compared to stock
• Supports over 1200 whp low-pressure capacity
• Compatible with all fuels, including E85

Operating Principle

• Primary pump operates normally under light load
• Secondary pump activates as boost increases
• Increases fuel delivery at high loads
• Ensures consistent delivery to high-pressure pumps

Why is an upgrade necessary?

The M178 engine's stock LPFP restricts performance, especially in tuned configurations:

• E85 significantly increases fuel demand
• High power requires more flow capacity
• HPFP cannot operate optimally without sufficient supply

Stage 3 LPFP:

• Removes the low-pressure bottleneck
• Improves system reliability
• Enables very high power levels

Compatibility

Models equipped with the Mercedes-AMG M178 engine:

• AMG GT
• AMG GTS
• AMG GTC
• AMG GTR