Are straight pipes allowed in DSP?

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  • e9nine
    E30 Mastermind
    • Oct 2003
    • 1890

    #1

    Are straight pipes allowed in DSP?

    :?: :?: Per what I read it seems yes, I just need an affirmation as I budget for the future...

    Exhaust manifolds and muffler systems are free, except that they must be quiet and terminate behind the driver. Exhaust heat shields may be removed. Rear- and mid-engined cars without exhaust headers/manifold systems may use any exhaust system that meets the requirements of 3.5. This permits the removal of "heater boxes" in order to install headers on such cars.
    I know they said they must be quiet, by comparison my car is not LOUD but its def. louder than stock
  • SlammedE30
    Mod Crazy
    • Oct 2003
    • 741

    #2
    If it says they are free, then they are free. And quiet is a relative term anyway. You're gravy.
    -Ted

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    • schnitzer teil-jäger
      Mod Crazy
      • Oct 2003
      • 661

      #3
      quite is usually 95 db at 50 feet on the longest straight.
      w

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