Edelbrock Pro-Flo 4 fuel pump relay kits were created to handle the high current that your EFI system needs to get the fuel from the tank to the engine. These relay kits help prevent voltage drops to ensure your fuel pump gets full voltage from your vehicle's battery to provide consistent fuel pressure to the regulator. These Pro-Flo 4 fuel pump relay kits are designed to plug into a Pro Flo system and come terminated with a fuse already inline.
