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Hypertech Power Programmer III (silverado 2003)

This is a discussion on Hypertech Power Programmer III (silverado 2003) within the GM Trucks forums, part of the Vehicle Specific category; Okay i have been using a Hypertech Power Programmer III on my 2003 Chevy Silverado 5.3 and i just can't ...

  1. #1
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    Post Hypertech Power Programmer III (silverado 2003)

    Okay i have been using a Hypertech Power Programmer III on my 2003 Chevy Silverado 5.3 and i just can't get my tuning down on the Rev limit and shift points!! Was hoping i could get some help here. so please let me know something...

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    back away from the handheld...please put the hypercrapper down and give nelsonperformance a shout
    2007 RCSB 5.3L

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    Member Nitrous's Avatar
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    Quote Originally Posted by dozerdan View Post
    back away from the handheld...please put the hypercrapper down and give nelsonperformance a shout

    LOL......................agreed! Hypertech

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