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M52 vs M50 exhaust manifolds

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    #1

    M52 vs M50 exhaust manifolds

    Bryson and I are wondering if both are the same, so that the M52 one (more flow) will bolt right up to my exhaust that was fitted to the M50 manifold.
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    #2
    well if they were both the same i dont think one would have more flow

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      #3
      The OBDI cars have cast iron lumsp

      OBDII have nice SS tubular manifolds. Basicly shorty headers.

      OBDII manifolds bolt up to OBDI motors fine.
      Tenured Automotive Service Professional - Avid BMW Enthusiast

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        #4
        Originally posted by Jordan
        The OBDI cars have cast iron lumsp

        OBDII have nice SS tubular manifolds. Basicly shorty headers.

        OBDII manifolds bolt up to OBDI motors fine.
        But are M52 manifold dimensions the same as M50 ones...I need to know if my exhaust thats fitted to the M50 will fit perfectly when I put the M52 in place (with M52 manifolds) without having to adjust/customize my exhaust.

        Jordan, I'm sure you answered my question somehow, but I'm slow and can't figure it out. You say the M52 ones are shorty style, but the M50 ones aren't?

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          #5
          Originally posted by permit
          Originally posted by Jordan
          The OBDI cars have cast iron lumsp

          OBDII have nice SS tubular manifolds. Basicly shorty headers.

          OBDII manifolds bolt up to OBDI motors fine.
          But are M52 manifold dimensions the same as M50 ones...I need to know if my exhaust thats fitted to the M50 will fit perfectly when I put the M52 in place (with M52 manifolds) without having to adjust/customize my exhaust.

          Jordan, I'm sure you answered my question somehow, but I'm slow and can't figure it out. You say the M52 ones are shorty style, but the M50 ones aren't?
          AFAIK the dimensions are the same. There's several E36s around here and a couple M50 swapped cars running around here with them on.

          "See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."

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            #6
            same
            Im now E30less.
            sigpic

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              #7
              Old thread...

              Do the S52 headers PERFORM any different to the cast M50 headers?

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                #8
                I never added to this, but OBD-II and OBD-I manifolds are not completely identical. One of the downpipes on OBD-II ones (forget if it's the front or rear manifold) nearly kisses the subframe. With OBD-I, there is much more room for an exhaust shop to work with.

                Comment

                  #9
                  Originally posted by permit
                  I never added to this, but OBD-II and OBD-I manifolds are not completely identical. One of the downpipes on OBD-II ones (forget if it's the front or rear manifold) nearly kisses the subframe. With OBD-I, there is much more room for an exhaust shop to work with.
                  You know you can run a complete E36 OBDII exhaust system from motor to valence, right?

                  That means the OBDII manifolds, center pipe w/ cats, and catback --- like it made to fit an E30.

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