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  1. Gains from 3" downpipe on a stock GTP... opinions?

    Started by Elite6, 12-16-2011 08:47 PM
    downpipe, gains from 3, gtp, opinions, stock
    • Replies: 9
    • Views: 6,654
    Last Post: 12-19-2011 04:57 PM
    by Swizzy  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

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