Performance fuel injectors are specialized components designed to deliver a higher volume of fuel to the engine compared to standard injectors. They are typically used in high-performance or modified engines to support increased power output. These injectors provide more precise and efficient fuel delivery, helping to optimize the air-fuel mixture, especially under higher boost or load conditions. They often feature larger orifices, improved spray patterns, and can handle higher fuel pressures, making them crucial for tuning engines for better performance, reliability, and fuel efficiency in performance applications.