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  1. kleinwild

    LBZ: Duramax (lbz) guy again

    Cool deal.
  2. kleinwild

    LBZ: Duramax (lbz) guy again

    Hey guys just picked up a sweet 07 LBZ dually 4x4 from my brother. It's bone stock as far as performance goes. I'm thinking of doing the EFI Tuning from the guy at Calvin's, egr delete, airdog, s&b intake, 5 inch full straight exhaust for starters. Anything else you guys think I should do?