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bolt on

  1. S

    Borla ProXS bolt-on "kit" / Muffler Swap DIY

    This is a resource (aka very long post) for those wanting to do a bolt-on muffler swap on the 5th Gen 5.7L with more customization compared to the B2 Fabrication or Mufflex kits (both of which seem to be quality kits if that is what you want). But if you are a DIY guy like me, I spent a lot of...
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