The Forced Performance blue 58mm turbo for Subaru STi/WRX includes a black housing with an external wastegate and an oil feed line, specified for STi and WRX installations. This configuration separates turbine housing and wastegate flow externally while keeping the oil supply integrated. The listing clarifies external WG plumbing and the 58mm sizing for direct-fit or upgrade scenarios on compatible Subaru models.
Forced Performance Subaru STi/WRX Blue Turbo 58mm Black Housing External WG w/Oil Line (D/S Only)