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  1. S

    Tru dual or not tru dual

    Is it the 5.3?
  2. S

    Exhaust help

    You will lose alot of back pressure. Ive done tons of true duals on the 5.3ls. I myself decided to make my old 2001 1500 true duals and i switched right back to a single 3" mid pipe to a single dual muffler and noticed a huge difference.
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