Stromung cat back Group Purchase

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  • eco325iX
    Advanced Member
    • Apr 2006
    • 105

    #706
    Gotcha, good to know, maybe I'll wait for the next group purchase. I have some other projects that need tending to, plus I need the front exhaust section as well. The accordion/flex pipe near the manifolds has a hole in it that the PO tried to weld shut, but failed, and the cat is original and I'm sure useless at this point.

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    • Stan
      Mod Crazy
      • Jul 2019
      • 770

      #707
      Originally posted by eco325iX
      Damn I missed this, how often does Stromung produce a batch of these? My vert is in need of an entire new exhaust system and this looks like excellent craftsmanship and quality! Hopefully I can jump on the next batch.
      I think you can still get in on it. Just follow the instructions, order on the Stromung website and note R3vLimited Group Purchase.

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      • eco325iX
        Advanced Member
        • Apr 2006
        • 105

        #708
        Thanks Stan, I'll look into it.

        One more thing, do you happen to know if the Stromung is a simple bolt-up application like the original exhaust? The reason I ask is that I want to replace my front section and would prefer to also replace the original cast manifolds with some stainless headers, as I have future plans for my M20?

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        • Zzyzx85
          Advanced Member
          • May 2012
          • 128

          #709
          Originally posted by eco325iX
          Thanks Stan, I'll look into it.

          One more thing, do you happen to know if the Stromung is a simple bolt-up application like the original exhaust? The reason I ask is that I want to replace my front section and would prefer to also replace the original cast manifolds with some stainless headers, as I have future plans for my M20?
          yes it is. you won't use the bottom half of the muffler straps as there are tabs on the muffler for the top half of the strap to attach to.
          Last edited by Zzyzx85; Yesterday, 09:37 AM.
          - '89 325i 4-door, Alpinweiss, 5-spd swap (and lots of maintenance) in progress
          - '03 M3, Imolarot, 6 speed

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          • eco325iX
            Advanced Member
            • Apr 2006
            • 105

            #710
            Zzyzx85, I had to look back at those photos posted on page 47 to understand what you meant. I like this design, it will look clean from underneath!

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            • Zzyzx85
              Advanced Member
              • May 2012
              • 128

              #711
              eco325iX Yep, I learned from my first E30 😄
              - '89 325i 4-door, Alpinweiss, 5-spd swap (and lots of maintenance) in progress
              - '03 M3, Imolarot, 6 speed

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              • 88Sedan
                Wrencher
                • Apr 2023
                • 239

                #712
                If anyone cares the stromung setup weighs basically the same as my stock style Walker brand catback, somewhere
                around 28lbs. I am doing a full rear rebuild so unfortunately I won't get to test the new exhaust for awhile.

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