The Forced Performance Subaru STi green turbo with an 84mm compressor, black housing, 18 PSI TiAL MVI wastegate and oil line is designed for STi builds demanding substantial airflow. It’s a platform-specific option to raise boost capacity and sustain higher power on modified engines, providing the wastegate hardware and oil feed needed for serious tuning while integrating with Subaru systems.

Forced Performance Subaru STi Green Turbo 84mm Black Housing 18PSI TiAL MVI WG w/Oil Line (D/S Only)