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School me on good sounding exhaust for my M30!

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    School me on good sounding exhaust for my M30!

    So I had a Magnaflow bolt on header back to welded pipes to a thrush muffler.

    What I need from my new M30 exhaust.
    -Quiet enough not to wake the neighbors at 3am when I work
    -Growls when wide open
    -DTM Tips

    Current idea
    Dual 2.25 or Single 2.5
    Simple little cat
    Glasspack(s) or resonator(s)
    Borla Spitfire Muffler or one of those cheap DTM mufflers

    #AZE30
    1991 318i
    1989 325i
    1989 335i

    #2
    well doing a resonator and stock cats would quiet down the dtm style exhausts, but they're going to be loud either way. A quieter muffler would help, like the vibrant stealth. Sounds great and is quiet enough with the proper resonators or cats.

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      #3
      Originally posted by squidmaster View Post
      well doing a resonator and stock cats would quiet down the dtm style exhausts, but they're going to be loud either way. A quieter muffler would help, like the vibrant stealth. Sounds great and is quiet enough with the proper resonators or cats.
      Is there anything that helps quiet down lower RPM sound?

      #AZE30
      1991 318i
      1989 325i
      1989 335i

      Comment


        #4
        cats and resonators

        Comment


          #5
          Originally posted by squidmaster View Post
          cats and resonators
          Alright, thanks.

          What do you recommend for resonators? Glasspacks?

          #AZE30
          1991 318i
          1989 325i
          1989 335i

          Comment


            #6
            Vibrant makes a good resonator, but any one should be fine, the bigger the better. You can always do an inline second muffler for extra quiet.

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