Some suspect that there were some revisions to the 04 WRX tranny to make it stronger than the 02’s.
http://en.wikipedia.org/wiki/Subaru_Impreza_WRX#Rev.B.282002.29_2
Starting in 2003 The trannies were fitted with STi-RA width gears.
Some suspect that there were some revisions to the 04 WRX tranny to make it stronger than the 02’s.
http://en.wikipedia.org/wiki/Subaru_Impreza_WRX#Rev.B.282002.29_2
Starting in 2003 The trannies were fitted with STi-RA width gears.