This might be a stupid question, but I'm curious. I have a stock 04 wrx and I find that, at idle, it's noticeably louder than other car. I just got this car a month ago and I've never had a subaru before, so I'm just wondering if this is a characteristic of wrx's. I've seen 08's at idle and its very quiet. I really doesn't bother me at all, in fact I like hearing that rumble, and it drives perfect. I don't see many stock wrx's around to compare, so can someone tell me if this is normal? or am I missing a cat or something?