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  1. Exhaust Mods
    Ok so I have an 04 Olds Bravada i6, and was wondering what the stock downpipe/ piping diameter was? Last time iirc it was 2.75 when I checked but that was months ago and havent had time to take a peek... :tiphat:thx
    custom exhaust exhaust exhaust downpipe i6 custom exhaust oem exhaust
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