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Old 11-22-2006, 10:45 PM
ChevyHighPerformance ChevyHighPerformance is offline
Hummer Professional
 
Join Date: Jul 2005
Posts: 278
ChevyHighPerformance is off the scale
Default Re: computer reprogramming ?

I done my own using HPTuners and I also tested a tune from PCM for Less. PCM for Less does a good job. I saw increased MPG, better power, smoother idle, firmer shifts, etc.
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