These new Hi-Flow billet fuel rails are a direct fit for all late model 2011 and newer naturally aspirated Coyote engines (5.0 and 5.2) including compatible with Cobra Jet and Boss 302. This also includes the 2018 and newer direct injection engines. The fuel rails feature a 5/8" diameter fuel passage that provides the flow capacity for high horsepower applications. The black anodized rails have -8 ORB ports on each end and an 1/8" NPT port for a fuel gauge installation if you choose to do so. The rails are designed with the factory injector clip reliefs so that your factory injectors and retaining clips can be reused. The kit includes fuel rails, mounting brackets and required mounting hardware. Gauge ports can be used to install fuel press/temp sensor on 2018+GT models with Earls P/N 02112ERL Gauge ports can be used as fuel feed connection with NOS P/N 17015NOS Gauge port can be used to feed DI pump on 2018+ Cars using NOS P/N 17015NOS Rail feed from factory line can also be accomplished with P/N 534-211