For 96-98 2.5L DOHC Phase 1 N/A Subaru engines. For 02+ Subaru Impreza WRX and WRX STI with 2.0L or 2.5L DOHC Turbo engines (EJ205, EJ207, EJ255, EJ257). For 04-11 Subaru Forester XT with DOHC Turbo engines.
For 96-98 2.5L DOHC Phase 1 N/A Subaru engines. For 02+ Subaru Impreza WRX and WRX STI with 2.0L or 2.5L DOHC Turbo engines (EJ205, EJ207, EJ255, EJ257). For 04-11 Subaru Forester XT with DOHC Turbo engines.