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  1. E63 / E64 6 Series (2004 - 2010)
    2008 M6 vert 6MT: Borla cat-back exhaust installed just before I bought it. Looks very nice (3.5" dia quad tips), and in as-new condition, but is too loud for me. It doesn't drone especially at interstate speeds, but I would prefer to advertise less. Anyone interested in a swap for a quieter...
  2. E63 / E64 6 Series (2004 - 2010)
    Im about to buy an m6 exhaust i was wondering how difficult it is to install does it require alot of alteration or pretty much bolt on i know the rear bumber needs to be modified but besides that anything else??
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