The Forced Performance Red turbocharger for Subaru STI and WRX features an 84mm CH10CM turbine housing with an external wastegate and an included oil feed line. This configuration couples increased turbine sizing with external wastegate plumbing to suit Subaru builds that prefer external boost control alongside larger turbine capacity.
Forced Performance Subaru STi/WRX Red Turbocharger 84mm CH10CM Turbine Hsg External WG w/Oil Line