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  1. R

    Best tuner for 2004 Chevy 8.1L

    Wondering what you all think would be a good tune for my gas hog. Not looking to brake the bank here. Tell me what you know about what the gains may be, thanks in advance. Sent from my SM-G530T using Tapatalk
  2. R

    Slight idle bounce 2004 chevy 8.1L

    Just recently replaced my alternator thinking because it's diodes were going bad was why my idle was rough. Turns out that was not the case. The voltage swing is gone (except now when the idle drops, so does the voltage) but the idle bounce is still there. (We're talking from 600, to 500 then...

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