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In this video, my good friend OJ diagnoses, repairs, modifies and tunes a totally mint 2000 E39 M5 and gains literally 139 wheel Horsepower. OJ started with BMW and then went on to open one of the coolest shops in the country, Fluid MotorUnion in Naperville Illinois.
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By Alex

15 thoughts on “Talented bmw tech diagnoses, repairs and tunes a mint e39 m5 for a 139 horsepower gain on the dyno!”
  1. Avataaar/Circle Created with python_avatars David J says:

    Maf trick the same for e60 n62 motor?

  2. Avataaar/Circle Created with python_avatars الطائي - says:

    i fucking love this

  3. Avataaar/Circle Created with python_avatars G B says:

    Can you just tell me the 10 second trick. I do t have time for a 15+ minute video 🙄🙄🙄

  4. Avataaar/Circle Created with python_avatars R .M says:

    CLEAN YOUR THROTTLE BODY 2022

  5. Avataaar/Circle Created with python_avatars icekk007 says:

    I wonder what is the impact on emissions after the tune. Does the car still run on lambda feedback control? I fear that it does not.

  6. Avataaar/Circle Created with python_avatars Mtb Ridingog says:

    Had a 328i with a bad maf I would unplug it to reset it back to factory values and the car would break traction .. granted I did do lots of work to the car but in the beginning it was drifting with the open diff ..

  7. Avataaar/Circle Created with python_avatars Zizo Gaucho says:

    This man OJ is a jam to listen to, and thanx to you Alex for featuring him every time, im now subbed for he's channel, but your collabs (here in LSC channel are better).

  8. Avataaar/Circle Created with python_avatars An idiot in a racing car says:

    I can't believe the other "techs" didn't catch that, that's such a common issue on BMWs of this era

  9. Avataaar/Circle Created with python_avatars the bear 65 says:

    Not even a pull

  10. Avataaar/Circle Created with python_avatars Jack PRick says:

    Makes me want ti drive to chicago to get OJ to tune my car. Fantastic!

  11. Avataaar/Circle Created with python_avatars Kristian Weed says:

    Is O.J Human he is possibly a demiGod

  12. Avataaar/Circle Created with python_avatars rueliotube says:

    Maybe this is dated info, but, with this being a Chicago area car where large temp swings occur, isn’t Alpha-N going to cause running issues as the temp scale swings? I thought Alpha-N was really for predictable whether conditions (and altitude) and had to be adjusted for variances. Great for race cars because you are setting it for race day conditions. So, even if this is a three season car, you can see a lot of variance in the Midwest. I am just a couple hours from Chicago myself so I know what it can be like here.

  13. Avataaar/Circle Created with python_avatars banlmao says:

    "no"

  14. Avataaar/Circle Created with python_avatars Shaun Bailey says:

    Cant imagine what it felt like to that guy went from making 528i/530i numbers to 140 extra horsies

  15. Avataaar/Circle Created with python_avatars LegitStreetCars says:

    Guess what my 409,000 Mile M5 made. Oh and what's Gregs car worth?

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