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high flow air mass meters

  1. Assuming it's necessary for another Engine Software Upgrade, when should I get it?

    E39 M5 and E52 Z8 Discussion
    Hi all, Two years ago, following the installation of SuperSprint Headers, Sport Cats, and X-Pipe; B&B Mufflers, I got an Evolve engine tune and got the gains in the attached picture. I am not sure if this information is relevant, but it can't hurt: Since then, I've driven about 10K miles. Not...
  2. High Flow Air Mass Meters without the high cost!

    E39 M5 and E52 Z8 Discussion
    :confused: I am not sure if this has already been discovered but here goes... I have been looking for an inexpensive way to make my own high flow air mass meters simply because I do not want to spend $599.00/ea for other brands. While under the hood of an E38 740 short sport I noticed that its...
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