[sliebhard]

Originally Posted by scenebiketbs

So I read through that multiple times. first im trying to find out which software version I need I went to real oem and it said I have a WC73 which isn't even an option. I saw that it says do INA0S for 335is models but mine is an xi. Does that matter? then there's one for pump and one for USA pump. I can't find anyone saying what the difference is on it. Do you know anything about some of these things? I just need a little guidance. I don't want to fuck my car up.. thanks either way.

What year is your car?