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Thread: Which band EFIE

  1. Default Which band EFIE

    I see that there is a narrowband and wideband Digital Quad EFIE how do i know which one to get for a 2009 chev silverado 6.0L gas pickup

  2. Default

    many hho out there & all of them need EFIE due to ECU but lot time end up trouble, I will suggest install the one do not need EFIE, I have 2005 silverado 4.8L installed hho with out EFIE ,pure nickel plate,no steam & no lyte get in to engine design reservior/bubbler,highway 25mpg ,need map enhancer

  3. #3


    you need a narrow band

  4. Default

    thanks timberron

    Hey formosa what type of a system and what was your mpg before

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