The brake pad shape changed between '02 and '03, but some people with '03s have '02 calipers. The 02 pads have a tab of 1/2" and the '03 have tabs of 3/8"

The easiest way to check to see what pads you need is just to measure the tabs. But with a '02, I'm positive that you've got the calipers that need the 1/2" tab.

As for pads, Axxis Ultimates are great for street driving. I have them on my Legacy (w/ '02 calipers/rotors) and I like them a lot.

 

I would recommend either BobCats or Panther Plus from Carbotech or the Fedoro DS2500.

I will be getting some DS2500 next 2 months. These will be replacing my STI pads.

I can tell you that WRX pads are craps. STI pads are so much better. In actual fact, twice as good. DS2500 should be a dream. I will see.

 

I got some Cobalt Friction GT Sports. I planned to have some track days with them. but I haven't had the time. However, I have had them on the car (02 wagon) for over 5k. They make a HUGE DIFFERENCE! The spongyness is gone and cold stopping is strong and when they warm up their awesome. No longer am I worried when I drive through the mountains pushing the car hard about my brakes fading or not being able to feel whats going on. they do squeak a little at stop lights but not consistantly. I definately reccomend getting an upgrade in brake pads if not the GT Sports by cobalt I'm sure the other ones mentioned are plenty good.