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The Forced Performance UHF turbocharger for Subaru STi and WRX applications is the 7151S variant with a 58mm CH7CM turbine housing, external wastegate, and an oil feed line. The 7151S UHF cue and CH7CM sizing describe this turbine’s flow character; the external WG positions boost control outside the housing. Choose this external-wastegate UHF 7151S unit when that orientation and oil-fed lubrication match your Subaru installation.
Forced Performance Subaru STi/WRX 7151S UHF Turbo 58mm CH7CM Turbine Hsg External WG w/Oil Line
