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  1. W

    LBZ: Old Owner New to Forum

    Thanks
  2. W

    LBZ: Old Owner New to Forum

    It sounds like EFI is really more for guys looking to get big gains more than just small hp / torque increases. I have read that the Edge Evo tuner has the best low end tunes and are safer for longevity of motor and transmission which I why I was looking to go that route. From what I have read...
  3. W

    LBZ: Old Owner New to Forum

    Hello everyone. Bought my 2007 3500 Classic Crew LB new and have no engine or trans mods. Truck now has 48k miles and sick of the crap mpg. Truck rarely gets moved without a trailer. Tow weights range from 3500 to 14000 lbs. Not looking to mod for any reason other than mpg on tow since not a DD...