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Need Ideas for Cat R and/or R 87 325iS

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    Need Ideas for Cat R and/or R 87 325iS

    My cats blown. Rattling around like a marble in a tin can.

    Ok...soooooo

    Do I want to replace it or gut it or run a straight pipe....or?

    Any ideas?

    Also...is a Magnaflow High Flow aftermarket cat worth chit?

    Thanks for your input.
    sigpic 1987 325is

    #2
    run a straight pipe in place of it.

    ive heard if you just gut it, it causes you to have surging in power due to the changing back pressure from having a empty cat
    sigpic

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      #3
      Every e30 lover should have the opportunity of driving one with a straight pipe set up.

      It really roars.

      Comment


        #4
        Originally posted by QWKE30 View Post
        Every e30 lover should have the opportunity of driving one with a straight pipe set up.

        It really roars.
        Yeah well, that sounds ok, to me, but just how loud is it? Wake the neighbors at 5am loud. Set off car alarms rollin through the parking garage?

        1. Anyone care to opine on the Magnaflow High Flow cat?

        2. Whats the set up on a straight pipe? Can a muffler/exhaust shop just fab one up or is it a "part" type thang?

        Thanks for your support...

        M............:)
        sigpic 1987 325is

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          #5
          Originally posted by xwill112x View Post
          run a straight pipe in place of it.

          ive heard if you just gut it, it causes you to have surging in power due to the changing back pressure from having a empty cat
          that would make perfect sense....
          sigpic 1987 325is

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            #6
            ttt for more info/ opinions
            sigpic 1987 325is

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              #7
              no cat is going to sound like ass.

              also, get a metal core cat. ceramic core is junk.
              Build thread

              Bimmerlabs

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                #8
                Originally posted by nando View Post
                no cat is going to sound like ass.

                also, get a metal core cat. ceramic core is junk.

                Noted, thanks!
                sigpic 1987 325is

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