The HKS fuel rail upgrade kit for 1993–1998 Toyota Supra Turbo is engineered for top-feed injectors and supports higher-flow injectors such as 680cc and 1000cc units. The kit provides a service-focused upgrade path for Supra owners installing larger top-feed injectors, enabling proper fuel delivery for modified engines while matching the Supra Turbo's top-feed injector layout without inferring additional hardware not specified by the manufacturer.
HKS 93-98 Toyota Supra Turbo Fuel Rail Upgrade Kit for 680cc/1000cc Top Feed Injectors