The APR Low Pressure Fueling System - MS100078 is a complete, direct-fit, plug-and-play fuel system upgrade designed to deliver optimal performance, fuel economy and enhanced reliability. It includes a high-flow fuel rail, fuel injectors, fuel pressure regulator, fuel lines, and all necessary hardware. The system has been designed to provide maximum fuel flow and increased fuel pressure, allowing for increased power and torque. It is a perfect choice for those looking to maximize performance and reliability.