[HuffRex]

Originally Posted by TROLL

in my eyes camber bolts are a necessity, camber plates are if you need even more adjustment. the bolts are for fine adjustment and plates are for major adjustments.
the wrx has camber bolts in the front from the factory in the upper bolt of the lower strut mount. if you need even more adjustment you can add another set to the lower bolt of the lower strut mount, but its probably not necessary.
i recommend adding a set of camber bolts to the rear struts, because without them there is no camber adjustment from the factory in the rear.
unless your car is ridiculously slammed, just adding rear camber bolts and getting a decent alignment should get you into spec. -1 or -2 degrees of camber will definitely not cause very much premature wear at all. however if you have anything but 0 toe it will cause increased wear.
for a daily driven WRX that you want to add a bit of performance to, i personally recommend about -1.5 front camber and -1.0 rear camber (give or take one degree all around--more negative for more aggressive, less negative for less aggressive), and 0 toe all around.

Thank you sir! Just the answers I was looking for!!