For Subaru Impreza 1994cc, 206KW, 280HP 1998-2000. for Subaru Impreza 1994cc, 155KW, 211HP 1998-2000. for Subaru Impreza 1994cc, 160KW, 218HP 1998-2000. >> The idle valve ensures quicker ignition and more stable rpm at start-up, reduces starting hesitation and prevents "stalls" in icy or cold conditions.