20r factory exhaust and headers

Discussion in 'Toyota Truck Forum' started by nwesley, Jun 14, 2018.

  1. nwesley

    nwesley New Member

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    ive got a newly rebuilt 20r with headers and the motor is very loud. I want to know is there a significant difference in noise level of I installed a factory cast iron exhaust manifold on it. I want to know before I purchase it. I like quiet motors, I didn’t expect a 4cyl to be so loud.
     
  2. dirtrider73068

    dirtrider73068 Senior Moderator
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    Not so much the manifold I would look to see what kind of muffler is on it, that is what pretty much muffles sound out of the exhaust.
     
    MikeG and gmctrucks like this.

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