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  1. [SOLVED] $2,000 for 4 exhaust manifold bolts!!

    OEM Issues
    Yep it's sad but true..... So over the last two weeks I've been hearing an exhaust leak every time I start up the Denali in the morning..or when it's been sitting for at least 3 hours. So I did many searches here and some other sites and nothing was to specific on this problem. And holy...
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