The Forced Performance blue UHF BB turbocharger for Subaru STi and WRX applications is a 58mm CH7CM ported-unit with an internal wastegate and oil feed line. The BB and ported turbine housing cues indicate a specific turbine variant and flow tuning, while the internal WG locates boost control inside the housing. Choose this ported internal UHF BB option when those hardware details match your Subaru application.
Forced Performance Subaru STi/WRX Blu UHF BB Turbo 58mm CH7CM Trbn Hsg Ported Internal WG w/Oil Line