Subaru STi Spec C Anti Surge Fuel Pump Assembly Koyorad Fits into the existing position

Fits into the existing position and plugs into the existing wiring loom

First Crank Prime

adding a touch of efficiency and responsiveness

common stud/nut failure

The will take slightly longer to replace compared to a complete disc

Subaru STi Spec C Anti Surge Fuel Pump Assembly Koyorad Fits into the existing positionThe Subaru Impreza fuel tank design is flawed particularly when running below half a tank of fuel. Its possible to encounter fuel surge on hard cornering and spirited driving as fuel moves around the fuel tank and away from the fuel pump. Fuel surge occurs when the fuel pump sucks in air as it is no longer submerged with fuel. This results in a fuel cut which from a driving perspective is quite aggressive as power from the engine is immediately cut.