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Premier Tuning Group · Fuel System
PTG M178 High Pressure Fuel Pump System
$4,999.99
A complete high-pressure fuel upgrade for the M178. The factory HPFPs run out of capacity well before the turbos do on a built engine, and once rail pressure falls away under load the calibration has to pull timing to stay safe. This system restores the headroom so the tune can deliver the fuel the build actually asks for — the foundation for high-boost and ethanol-blend work.
Fitment
Mercedes-AMG M178 4.0L V8 biturbo (AMG GT)
- Direct replacement for the factory HPFPs
- Supports high-boost and ethanol builds
- Maintains rail pressure under sustained load
- Requires supporting calibration
![Spool Performance Stage 3 Low Pressure Fuel Pump — C63 [M177]](/_next/image?url=%2Fimages%2Fparts%2Fspool-performance-stage-3-low-pressure-fuel-pump-c63-m177.jpg&w=3840&q=75)
![Spool Performance Stage 3 Low Pressure Fuel Pump — E63 [M177]](/_next/image?url=%2Fimages%2Fparts%2Fspool-performance-stage-3-low-pressure-fuel-pump-e63-m177.jpg&w=3840&q=75)
![Spool Performance Stage 3 Low Pressure Fuel Pump — GT63 [M177]](/_next/image?url=%2Fimages%2Fparts%2Fspool-performance-stage-3-low-pressure-fuel-pump-gt63-m177.jpg&w=3840&q=75)
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