1998 Subaru Forester 2.5L H4. 1995 1996 Subaru Impreza 2.2L H4. 1998 Subaru Impreza 2.5L H4. 1992 1993 1994 1995 Subaru Legacy 2.2L H4. 1996 1997 1998 1999 Subaru Legacy 2.5L H4. Cleaning :Cleanliness is crucial, and injectors are thoroughly cleaned to remove any contaminants that could affect performance.