FAST Precision - Flow Fuel Injectors deliver the outstanding idle quality, unparalleled flow consistency and durability essential for high performance EFI engine applications. Engineered to yield faster throttle response, reduced clogging and superior fuel atomization, Precision - Flow Fuel Injectors are manufactured to the tightest tolerances in the industry. FAST also offers Precision - Flow Fuel Injectors specifically for GM Gen IV engines that are the highest flowing injectors available for these applications and are uniquely designed for direct installation into LS2 and LS3LS7L76L92L99 - style engines. Available in two different height configurations and a wide range of flow rates, the injectors are correctly sized (shorter than common LS1LS6 injectors) and feature the correct EV6USCAR connector, enabling a hassle - free plug - in operation.