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  1. 04 trailvoy i6 exhaust diameter>?

    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
  2. 04 trailvoy 4.2 exhaust diagrams

    Exhaust Mods
    I was wondering if anyone had an exhaust diagram for my 04 bravada 4.2 i6.. I am in the process of designing a custom exhaust setup, but would like to know factory exhaust piping size/length/ location of cats etc.... Snow is on the ground here in mass, and my lift is...