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  1. Need some HELP....Electrical Issues

    E39 M5 and E52 Z8 Discussion
    Hey guys, Im not a serial poster but lurk very often. I see that there are alot of knowledgeable people on here so some of you might be able to help a fellow M5'er out So, I own a 2003 M5. A few modest mods like a muffler delete, springs, spacers and what not. Absolutely no electrical...