Which components for a drone free M20-turbo exhaust

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  • kristov
    Wrencher
    • Dec 2007
    • 222

    #1

    Which components for a drone free M20-turbo exhaust

    Hi,

    Any suggestions on parts to use for a drone free exhaust?

    I would like to use 3" tubing/mufflers.

    It has to be civilized enough to be a daily driver and I'd rather err on the more anonymous side than too loud.
  • kristov
    Wrencher
    • Dec 2007
    • 222

    #2
    Originally posted by 87Lachsilber
    your gonna need a glass pack resonator to quiet it down plus a moderate muffler you'll have to do research on those but with that said you might lose some power now that the exhaust isn't as free flowing
    Resonator = straight through glasspack?

    Muffler = chambered?

    Comment

    • cleanasse30
      E30 Addict
      • Jan 2014
      • 436

      #3
      For a semi loud drone free i would go with a bottle style resonator and a glasspack muffler.

      For a quieter exhaust I would go with a glasspack resonator and a glasspack muffler.

      Turbos themselves actually quiet the exhaust down so I would probably go with the bottle style resonator but thats just my preference.
      2.7i Stroker Turbo Build Thread

      90 325i | 95 Miata

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      • bobross
        Mod Crazy
        • Jul 2005
        • 753

        #4
        Resonator up front muffler out back
        Make sure the tip clears the bumper, pick the longest cases you can fit and all will be gravy

        Super quiet inside:
        -Greg
        90 325isT - 12.2 @ 120ish - Dyno Results
        b18c5 EG Coupέ - 13.5 @ 100ish - Dyno Results

        Comment

        • kristov
          Wrencher
          • Dec 2007
          • 222

          #5
          Do any of you have recommendations on manufacturers or better part numbers?

          Comment

          • cleanasse30
            E30 Addict
            • Jan 2014
            • 436

            #6
            Vibrant, Dynomax and Magnaflow are all decent from what I've heard/read. Just go on summit racing and narrow your search down and find what would work best for your fitment/needs. I posted direct links to stuff in my earlier post.
            2.7i Stroker Turbo Build Thread

            90 325i | 95 Miata

            Comment

            • ak-
              R3V OG
              • May 2009
              • 12422

              #7
              Biggest and widest flowing muffler you can fit in the end.
              3" vibrant muffler in the middle.

              1991 325iS turbo

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