Can anyone tell me (clueless person), when BMW factory did a tune up on my previews x6 5.0i, does any of you know, what kind of tune up they done ?? (mean the setting wise) I know that there was 44hp and 50 torgue, or is there any chart ?? I'm trying understand what the hell did BMW factory did to my 5.0i that I had, that was much faster then god damn x6m.......... Sorry for annoying you all. Just trying to figure out.
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