Radium Engineering Mitsubishi 4G63 Early Fuel Rail

Radium Engineering designed the Mitsubishi 4G63 Early Fuel Rail as a purpose-built solution that replaces or upgrades the factory fuel rail with a high-flow rail designed for performance injectors and AN/ORB plumbing. The larger, purpose-built fuel path is useful on modified engines where injector choice, fuel volume, and serviceable external plumbing matter more than the stock rail layout.

For Mitsubishi 4G63 Early, it is intended to integrate with the vehicle-specific layout rather than serve as a universal substitute. Injector height, upper/lower O-ring diameter, and plumbing requirements vary by engine. Match the exact application and injector configuration.