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Performance Upgrades?

Chevy/GMC Trucks Make Specific
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noclrnce@yahoo.com's avatar
Performance Upgrades?
noclrnce's avatar
noclrnce
+1y
I just bought a Hypertech programmer for my 04 Tahoe. I kinda understand how to use it but not completly. How do you set it up to get the most out of it? Does it do everything that the company claims it does? Help me get this figured out!
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