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mailorder mafless

  1. hwy747

    [LS1] Mailorder mafless tune done ... what took me so long??

    Well....I got my "mailorder" tuned PCM back today, installed it, and holy crap does it make a difference! I can't believe it took me this long to get it done!! If anyone is considering doing it, I say go for it! You will LOVE it!! :yahoo: Example....half throttle off the line, changed into...