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Thread: E38 2 bar os

  1. #1

    E38 2 bar os

    Just getting started with tuning should I do the 2bar os enhancement or should I stay how it is stock and tune that way?

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    I suggest not touching it unless you are 100% sure of what you are doing.

    The 2 bar OS has it uses and for 95% of people they do not require it.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.