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Thanks again!! Appreciate the help.

Great! Thanks for confirming. I'm still new to this so could you explain TIS VIN lookup and CVN checksums verification in case I run into this in the future with another vehicle?

I should upload...

Hoping someone can help find a stock file to compare to my stock(?) file. I'm new to tuning and have a 2011 Silverado 3500HD 6.0 E78 6L90 (non flex fuel) that I'm ready to try making a few changes to...

Hello, new from Texas. I'm a GM guy with mostly LS vehicles. I just started and had a few questions, so I figured it was time to join.