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  1. C

    Van Tune Express

    Thanks for replies, wrote up a tune and in beta testing now... On the durmax van has anyone done anything to the fuel filtration system or added lift pump? If so could you share the products used? I just found the CAT fuel filter adapter from sinister diesel on FB marketplace for a deal and...
  2. C

    Van Tune Express

    Let me dive deeper in hopes of making this clear. When writing a mileage/economy tune I have an understanding of main injection pulse and timing (most critical & secretive). Read that lowering boost in the 60-70 mph range to improve fuel economy. How does one lower engine boost in the cruising...
  3. C

    Van Tune Express

    Whoa yes JoshH you are the van man!!! Very impressive, nice job on that build!! No quite looking for a race tune ;)
  4. C

    Van Tune Express

    2007 Duramax thanks for reply! I'm curious I have done the research on trucks yet there is just hardly any info for tuning on vans... EFILive
  5. C

    Van Tune Express

    Has anyone ever wrote a van tune or have any to share? Tips and shared knowledge much appreciated!! Thanks!
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