Mercedes-AMG 45 M133 Spool Stage 3 Low Pressure Fuel Pump Upgrade

The Spool Stage 3 low pressure fuel pump kit for the Mercedes-AMG 45 M133 removes the in-tank pump as a bottleneck on high-horsepower M133 builds, especially on E85.

Why you need it

Once your high pressure pumps can support the fuel demand, the factory in-tank pumps that feed them become the limit. This twin-pump design brings the second pump in at boost onset and supports over 1000 whp of low pressure fueling on any fuel type.

Fits

• Mercedes-AMG CLA45 (M133)
• Mercedes-AMG GLA45 (M133)
• Mercedes-AMG A45 (M133)

Features

• Twin-pump design with the second pump activating at boost onset
• Supports over 1000 whp of low pressure fueling
• Built for high ethanol blends including E85

Good to know

Pair with an upgraded high pressure fuel pump and a matching tune for best results. Professional installation is recommended.