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  1. BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi guys, I've sourced a whole M3 Evo (the 3.2) exhaust system- maifold all the way down to the tailpipe. But before i go to collect, are there any distinguishing features to tell me the whole system is an original Evo system?...Just to be difference in pipe sizing, or any codes or...