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Thread: Will a 1995 OBDI Throttle body work on my 1999 M3?

  1. #1
    Join Date
    Oct 2014
    Location
    Ohio/Texas
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    2,640
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    2 1999 M3's

    Will a 1995 OBDI Throttle body work on my 1999 M3?

    I found a good deal on a dinan throttle body from a 1995 325 and was wondering if id have any problems with it on my 1999 M3? I already have a Dinan chip

  2. #2
    Join Date
    Aug 2011
    Location
    WA
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    My Cars
    '97 BMW M3/2/5
    Their website lists OBDI throttle bodies as not being compatible with OBDII cars, and vice versa.

    I'm not sure if the parts are completely different, but I know that when I switched to an M50 manifold I had to run a thicker gasket between the M50 manifold and my OBDII Dinan BBTB to get them to mate up. I'm not sure if that is the only difference, or if they have other differences as well.

    Best to shoot Dinan a call to verify about the throttle body.

    And by chip do you mean a Dinan flash? S52's/OBDII cars require ECU flashing, is that what you meant? A chip from a 1995 ECU is not compatible with '96-99 ECUs.
    Last edited by Carpy2; 01-12-2022 at 01:30 AM.
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  3. #3
    Join Date
    Oct 2014
    Location
    Ohio/Texas
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    2 1999 M3's
    Correct my ecu has been flashed by dinan

  4. #4
    Join Date
    Feb 2009
    Location
    Arizona
    Posts
    1,953
    My Cars
    1998 e36
    Bigger throttle body does nothing except making throttle more sensitive. Don't bother

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