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  1. Reprogramming ECM - Duramileage?

    Performance Upgrades
    Has anyone tried this? I copied this from the powerupdiesel website SO WHAT EXACTLY IS DURAMILEAGE? DURAMILEAGE is the product that will do all the things you were hoping for... that the others promised to do... but could not. First off... DURAMILEAGE is NOT: * an off the shelf hand-held...
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