Your Duramax Diesel Only Store

Member's Forum

  • EFI Live not switching tunes


    I bought the EFI live tune package from this site a few months ago. When I first installed the tunes everything worked fine and I was able to switch...

  • 2006 6.6


    Sometimes 06 truck won’t start acts like batteries are dead. Then other times it starts right up like nothing’s wrong. Can’t figure it out.

Employment Opportunitites
Become a DMaxStore Dealer