05's also have a quicker steering ratio, 17x8 BBS instead of 17x7.5 and now comes stock with a radio. Very mod friendly. My buddy's 05 STi put down 317 whp 320 trq. after a ECUTek reflash, TBE and upgraded fuel pump. He now puts a car length on me at the end 4th whereas I was putting a car length on him before his reflash.