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Thread: Mounting S52 midpipe on 95M3

  1. #1
    Join Date
    Sep 2016
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    1995 BMW M3 Coupe

    Mounting S52 midpipe on 95M3

    For those of you that have done this, what did you use to support/hang the midpipe?
    The original S50 bracket?
    Nothing - hanging by rubber hangers only?
    Installed a S52 bracket (is this possible)?
    Custom fabrication?

    I see a lot of people have done the swap but I don't see much information addressing this question.

  2. #2
    Join Date
    Feb 2009
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    97 M3 & 13 Rav4
    Haven't done this myself but I don't think you'd need the bracket. My S52 midpipe is held by the headers and hangers.

    Sent from my Pixel XL using Tapatalk

  3. #3
    RRSperry's Avatar
    RRSperry is offline Senior Moment Member BMW E36 M3 Expert
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    Yep, didn't use the mount on the transmission.
    No matter where you go, there you are...

  4. #4
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    Which bank do you put the 02 sensor in?

  5. #5
    RRSperry's Avatar
    RRSperry is offline Senior Moment Member BMW E36 M3 Expert
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    I had a bung welded in 4-6 and 1-3 precat. I switched between banks just to check, and never noticed and real difference. Wideband or narrow band.
    No matter where you go, there you are...

  6. #6
    Join Date
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    I have mine supported by the headers and rubber mounts. I had a O2 bung welded in bank 1-3, I have had it this way for years and haven’t had a problem yet. But I do wish the O2 sensor could monitor both banks.

  7. #7
    Join Date
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    F90 M5; E36 M3 Turbo
    You could add an X or H pipe and put the O2 in it. Bigger job obviously. Or convert to OBD2, an even bigger job (using a Euro M52 crank trigger that is front mounted like your OBD1).

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