The Forced Performance black turbocharger for Subaru STi and WRX applications uses an 84mm CH10CM turbine housing and ships with an 18PSI TiAL MVI wastegate plus an oil feed line. That combination signals a specific boost control option and oil-fed lubrication. Select this 18PSI TiAL MVI-equipped unit when the indicated boost level and TiAL-style wastegate match your Subaru installation needs.
Forced Performance Subaru STi/WRX Black Turbo 84mm CH10CM Turbine Hsg 18PSI TiAL MVI WG w/Oil Line