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Performance programmer?
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03-06-2006, 12:05 PM
Dan
Hummer Guru
Join Date: Nov 2002
Location: Cognito
Posts: 2,155
Update -
I had to send mine back to Hypertech for a software update. Got it back and installed the 87 octane program and increased the trans line pressure. I defintely notice a power gain and the trans shifts better now. Happy with it!
Dan
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