One problem related to noises during shifting has been reported for the 2002 Subaru Impreza Wrx. The most recently reported issues are listed below.
I own a 2002 Subaru Impreza Wrx with a manual transmission. Every once in awhile when I come to a complete stop and shift into first there is a grind noise. It was intermittent and I reported it at least 3 or 4 times and the dealer couldn't reproduce it. . Finally after doing in for over a year it has gotten bad enough they could reproduce it. . They tore it down and the first gear syncho is bad and they will not cover it under warranty stating driver abuse. . This is total bs I never abused the car, it has been doing it for a while and other drivers have had the same problem. In fact between my wife and I we have had 6 cars with standards and have never had such a problem. . The abuse claim is just to get out of paying for a failure over time in a faulty transmission and the extended warranty I have is supposed to cover it.