I just bought a 2004 (9/03) 330i zhp 6 speed manual. I have been reading that the zhp's came with a 3.07 gear ratio but according to real oem and the bmw parts department, the sedans didnt come with a 3.07 until 3/04. I found the sticker on my diff but the numbers were faded off. Can anyone verify that the early zhp's came with the 3.07 diff? Thanks