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My 91 M5 Euro with catalytic converter has a rusted cat. Does anyone offer a bolt-in track pipe with welded nuts to attach any sensors (if applicable? From the cat back the system seems sound. Can anyone recommend a decent system (OE quality or better) from the header back? Extra free flow and a bit more louder will not offend me. E-mail me directly please. naoz@aol.com
Thanks!
Mike Nahar
1991 Euro M5 3.4L