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  1. #1

    Default true duals on nnbs

    I'm looking at putting duals straights on! But don't know if I should put true duals after cats our just cut off the muffler and y it out. If it didn't cut down to v4. I'd run after cats. Any one on here run straights after cats? If so could you put a sound clip on here for me please!

  2. #2

    Default

    what is a v4?

  3. #3

    Default

    He's talking about how the motor cuts off 4 cylinders to save on gas at cruising speeds.

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