IE3 + Bilstein sport = hitting my muffler

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  • mamzak
    E30 Modder
    • Mar 2010
    • 883

    #1

    IE3 + Bilstein sport = hitting my muffler

    Just did the typical IE3 and Bilstein sport suspension overhaul, but now my stock muffler (bosal from the M42) Is banging against the drivers side shock. Anyone else have this problem/a solution? I'm thinking just take mechanics wire and tie it over to the right a little? Any better ideas?
    Originally posted by Dozyproductions
    All girls fuck but not all girls fuck around with combustion engines.
  • ak-
    R3V OG
    • May 2009
    • 12422

    #2
    Maybe I'm ignorant about it, but how would your muffler/exhaust start hitting your shock from just going lower? What else did you change?

    1991 325iS turbo

    Comment

    • reelizmpro
      R3V OG
      • Dec 2003
      • 9459

      #3
      Perhaps they cut the pipes too short when they installed the muffler so it's too far forward and hitting the shock bolt? This was the case with my exhaust.
      "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

      85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
      88 M3 - LACHSSILBER/SCHWARZE
      89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
      91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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      • caliGreen
        Advanced Member
        • May 2010
        • 195

        #4
        you shure its on the right mounting brackets?.... modfied pipeing? pics?

        Comment

        • mamzak
          E30 Modder
          • Mar 2010
          • 883

          #5
          Yeah I just got a brand new stock exhaust from the cat back like a year ago, all the mounting points are correct. Looking birds-eye, with the top being the front of the car, it would look like the top left corner of the muffler body is beside the lower shock bolt, like probably within a micrometer, so that any vibration makes the muffler rattle like hell against the shock. but now if I pull the muffler over to the right I'll be hitting the hole in the valence for the exhaust. Fuck it, I'm going to go take pics. BRB
          Originally posted by Dozyproductions
          All girls fuck but not all girls fuck around with combustion engines.

          Comment

          • mamzak
            E30 Modder
            • Mar 2010
            • 883

            #6







            You can see the yellow shock hitting the muffler there....
            Originally posted by Dozyproductions
            All girls fuck but not all girls fuck around with combustion engines.

            Comment

            • M-technik-3
              I waste 90% of my day here and all I got was this stupid title
              • Oct 2003
              • 18946

              #7
              Check your rubber hangers they just might be getting weak and old.
              https://www.facebook.com/BentOverRacing

              Comment

              • ak-
                R3V OG
                • May 2009
                • 12422

                #8
                I have a very odd feeling your muffler was installed upside down.
                Think about it.

                1991 325iS turbo

                Comment

                • mamzak
                  E30 Modder
                  • Mar 2010
                  • 883

                  #9
                  Originally posted by ak-
                  I have a very odd feeling your muffler was installed upside down.
                  Think about it.
                  What makes you say this? How can you tell?
                  Originally posted by Dozyproductions
                  All girls fuck but not all girls fuck around with combustion engines.

                  Comment

                  • ak-
                    R3V OG
                    • May 2009
                    • 12422

                    #10
                    here is a stock 318 muffler.
                    see the angle of the tip and such? it is exactly like yours but "flipped over"


                    1991 325iS turbo

                    Comment

                    • mamzak
                      E30 Modder
                      • Mar 2010
                      • 883

                      #11
                      Are you sure? Hmmm. But that would mean the tip would be even more angled than it is now, because if it was flipped over the outlet would be more to the right. Fuckers....

                      Can someone else with stock 318is exhaust post a pic to compare?

                      Also: would this change where it's sitting in relation to the shock? It would be a symmetrical flip wouldn't it? It shouldn't matter if it's upside down or not?
                      Originally posted by Dozyproductions
                      All girls fuck but not all girls fuck around with combustion engines.

                      Comment

                      • ak-
                        R3V OG
                        • May 2009
                        • 12422

                        #12
                        If you flip it right now, it will be a little offset going towards your spare tire well with the tip angled properly.
                        I'm just speaking through opinion and what I can make of this, I don't have a 318.

                        1991 325iS turbo

                        Comment

                        • 325issguy
                          Wrencher
                          • Dec 2005
                          • 261

                          #13
                          Looks like what someone said above... The muffler piping needs to be extended back an inch or two... Ill check tommorow on my 318 muffler and see where it sits with the same suspension.

                          Comment

                          • Teaguer
                            R3V OG
                            • Sep 2004
                            • 6167

                            #14
                            WTF !! How can this be such a big problem that its thread worthy?

                            Also your muffler is NOt upside down so relax.

                            Why don't you loosen the rear hanger that bolts to the subframe and pull your exhaust over and tighten it back up?
                            This will do the trick.

                            Alternatively you could just try pulling the exhaust over without doing anything to the hanger as it seems your mechanical abilities (as well as other things) are limited.

                            E30 M3 / E30 325is / E34 525iT / E34 535i

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