The stock mechanical fuel pump is removed and replaced with a block-off plate, with the knock sensor mounted to it. The new EFI fuel pump should be mounted as close to the tank output as possible. The fuel pump is mounted using the supplied vibration-dampening clamps. The fuel filter shown here is mounted between the fuel tank and the fuel pump. Any fuel filter mounted downstream from the fuel pump must be a high-pressure type and use the appropriate high-pressure EFI hose and clamps.