Originally posted by no_rex_yet
That's odd, the wrx sedan and wagon now both have a 17mm rear bar? Didn't the 02-03 sedans have 20mm bars?
Yes, according to the manual, the 02 WRX sedan has 20mm stabilizers front and back. It appears for 2004 that the WRX sedan's rear stabilizer has been changed to match the WRX wagon, which remains the same as before, 17mm.