I'm not sure - but if I had to guess I'd guess the 2005's also have a higher failure rate of wheel bearings. i don't see enough Subaru's to know, but all things being equal (which is nearly impossible now due to age/miles of older stuff) but i'd guess like somewhere in the 90's and earlier fail less often at lower miles than late 90's until now.
New Plugs & Wires. Hood release cable, zip ties saved me because I was able to remove the grill without too much fuss and get to the latch. 02 sensor was a pain to get out, patience and penetrating oil did the trick. Next up: exhaust Y pipe, electric fan, tires, CV boots, and bodywork. Drive 'em till the break and then fix!